V-Trust Inspection Service Co., Ltd

Wide Expertise in the Home Audio &amp; Speakers Industry  V-Trust's inspection services for home audio and speakers provide essential support to buyers, ensuring that products meet customer specifications and quality standards.  Whether it’s home audio systems or standalone speakers, V-Trust’s inspection process carefully examines product integrity, appearance, and build quality to ensure there are no defects like scratches, dents, or loose parts. Functionality checks focus on sound quality, speaker sensitivity, battery performance, and power output, along with total harmonic distortion (THD) and frequency range. Additional tests cover connectivity, including wired and wireless options, Bluetooth pairing, multi-device compatibility and other tests to confirm product reliability.  V-Trust helps buyers minimize risks and avoid costly issues by providing detailed inspection reports, complete with photographic evidence, available within 6 to 24 hours after the inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.com 

Home Audio & Speakers Product Inspection

Hanhong Digital Technology Co., Limited

With the talented in house designer and the strongest R&amp;D team which leads Hanhong to create the unique and excellent products to worldwide clients, all of our products have our private toolings with design patented, we are expert in making some difference whether on the designs or the acoustic technology so as to bring the good branding value for our customers. Also we have strongest R&amp;D team including the electronic engineers, mechanical engineers, acoustic engineer and software developing engineers who assure the enough capacity of doing customized ODM projects with our customers. 

OEM / ODM FACTORY

Wide Expertise in the Headphones &amp; Earphones Industry  V-Trust's inspection services for headphones and earphones offer essential support to buyers, ensuring that products meet both customer specifications and quality standards.  Whether it is an order of headphones or earphones, the V-Trust inspection process involves a comprehensive assessment of product integrity, appearance, and build quality to ensure there are no workmanship defects, such as scratches or loose parts. Functionality checks include audio quality, charging and discharging tests, battery performance, frequency response, impedance, microphone clarity, as well as testing wired and wireless connectivity and other factors to verify product reliability.  V-Trust helps buyers minimize risks and avoid costly issues by providing detailed inspection reports with photographic evidence available within 6 to 24 hours after the inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.comEmail: cs@v-trust.com 

Headphones & Earphones Product Inspection

Allied Environmental Consultants Limited

Acoustics, Audiovisual, Lighting and Theatre Planning Acoustics Proper acoustic design ensures the high quality of desired sounds as well as the isolation of unwanted sounds from some space or environment. Architectural form and mechanical logistics must be considered with acoustics for the benefit of listeners, occupants and performers. This holds true for all spaces, not just those with which sound quality is primarily associated. AEC has provided solutions by ensuring the sound quality of concert and lecture halls, noise isolation privacy for residences and office spaces. AEC possesses a team of acousticians with a depth of project experience to draw from and a diverse set of skills like simulation, computation and design to navigate this science.  Audiovisual Audiovisual systems are among the drivers of the multimedia technology trend we are seeing become more and more important in the 21st Century. The general evolution of technology has increased the capabilities of AV systems and has facilitated more specialized projects. Now more than ever, artists, theatre owners and business leaders can see their visions come to life using complex and large scale systems. As these systems grow in scale and depth, so to do the intricacies of designing them. AEC’s AV team can help build these systems from the schematic stage to the integration stage and enrich and a patron’s – and owner’s – experience.  Lighting Lighting design is for people, their comfort and their enjoyment of the spaces in which they live, so it must provide smart, sustainable and affordable solutions and be considerate of our environment. AEC offers a comprehensive lighting design service, from initial strategic advice and concept development, through to construction and on-site support. Our electrical lighting services include architectural lighting, façade lighting and landscape lighting design. AEC’s lighting team is also skilled in daylight modelling which, by working closely with architects, enhances natural light distribution through building interiors by reflecting and diverting different colours to materials.  Theatre Planning Theatre Planning allows the implemented Acoustic, AV and Lighting measures to be received by the individual. It smooths the service of front-of-house planning and eases the technical aspects of back-of-house and maintenance. Theatre planning is an extensive, logistical practice which combines many disciplines. AEC’s team is proficient in these and can provide solutions to functional planning of public FOH areas, BOH circulation, machinery, fly tower and rigging systems, stage engineering, communication infrastructure, seating and lighting sightline studies and many more technical considerations.  To know more: https://www.asecg.com/service/3 

Acoustics, Audiovisual, Lighting and Theatre Planning

Svi Public Co Ltd

Electronic manufacturing service, start from PCBA to Final Assembly. Factories located in Thailand, Austria, Slovakia and Hungary. 	 Audio 	 Medical 	 Telecommunication 	 Industrial 	 Transportation 	 etc.,  

Electronic Manufacturing Service - Audio Equipment

TUV Rheinland HK Ltd

  Our Audits  
We perform audits based on the specifications of the R&amp;TTE directive. We also perform compatibility inspections and quality inspections. These include:   Audits for electromagnetic compatibility   Audits for radio test series   Audits for electrical safety and compliance with health and safety regulations   Notification in individual EU countries   Audits for compliance with interface parameters in line with national and international standards and individual manufacturer specifications   Compatibility and quality inspections for analog and digital terminals and devicesIssuing an audit report and a certificate  

Radio Installations and Telecommunications Products Testing

Wide Expertise in the TV Industry  V-Trust's inspection services for TVs and their accessories provide invaluable support to buyers, ensuring that products comply with customer requirements and quality standards.  Whether it is an order of LED TVs or SKD/CKD TV sets, the V-Trust team conducts a thorough assessment of the exterior and screen condition, ensuring there are no physical damages or defects, such as dead pixels or discoloration. Functionality and safety testing covers power, battery, display brightness and quality, sound performance, connectivity options, and other tests before products are released to the market.  V-Trust helps buyers minimize risks and avoid costly issues by providing detailed inspection reports with photographic evidence available within 6 to 24 hours after the inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.comEmail: cs@v-trust.com 

TV & Accessories Product Inspection

The Hong Kong Standards And Testing Centre Ltd (STC)

 STC is the first non-governmental laboratory in Hong Kong to receive accreditation from Certification and Accreditation Administration of the People’s Republic of China(CNCA) to provide comprehensive ChinaCompulsory Certification (CCC) testing services.  Our laboratory in Dongguan, is the first non-government organization in China to obtain designated CCC testing laboratory status providing full scope CCC toy testing services and CCC testing services for information technology equipment, lighting products and audio-visual equipment.     STC provides one-stop CCC and support services from application and document preparation to type testing and factory inspection to meet all local and oversea CCC needs.  Audio-Visual Apparatus (GB 8898-2011, GB/T 13837-2012, GB 17625.1-2012) Audio-visual equipmentAudio power amplifiersVarious optical disc playback and processing equipmentRadio receiver for various broadcasting frequencies Combination speakersIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

CCC China Compulsory Certificate for Audio

UltraOne Technologies Limited

Services and Solutions: Intelligent Lighting System, Integrated AV Control 

Central Control System

Propagation Systems Limited

Propagation offers not just only the design service but also the hardware modules for different application. The qualified modules are suitable for the OEM services as well as the system design. Our OEM partners are located in both Southern part of China and Northern part of Vietnam in over 20 years manufacturing experience.   matter® Connected Things  – Border Router and End NodeBluetooth® Low Energy     – Bluetooth version 5.3Classical Bluetooth® Audio  – customized Bluetooth audio in both DSP and applicationEmbedded WiFi®           – bundle solution with Amazon Wed ServiceUltra Wide Band (UWB)      – RTLS applicationSigfox®/ LoRa®            – Long range transmission up to 1.5km Hardware Design service: Because of our electronics and electrical background, we also provide the hardware design service based in Hong Kong. Propagation completed over 120 projects in the last 10 years.  Application BoardIOT deviceEmbedded Linux / Android Development

Hardware Development

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including: Providing technical support services at different design stagesOffering a full scope of electrical safety testing serviceProviding one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency test Consumer Electronics Appliances Safety Test for EN/IEC 60065: AV Product (less than 50W)AV Product (more than 50W, less than 300W)AV Product (more than 300W)Television setTo know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Consumer Electronics Appliances Safety Test

  Procedure     Bluetooth&reg; tests are classified according to category A, B, C, or D. Varied information is required for each project step:   Submission of first set of documents, necessary before preparation of the test plan   Submission of second set of documents, necessary before testing starts   Submission of final set of documents, necessary for completion of the compliance folder    Requirements  
To acquire the right to use the Bluetooth&reg; wireless technology and claim certification, your product is required to be tested and assessed according to the Bluetooth Qualification Program established by the Bluetooth SIG.

The most important prerequisite to any qualification and listing is for a company to be a Bluetooth &ldquo;Promoter,&rdquo; &ldquo;Adopter,&rdquo; or &ldquo;Associate&rdquo; member. The related adopters or associate agreements need to be up-to-date.

An overview of procedures related to Bluetooth testing and listing projects is available through T&Uuml;V Rheinland. It is not designed to amend or replace officially published information from Bluetooth SIG, such as, but not limited to, the Licensing and Trademark regulations published in the Bluetooth Brand Book.

  Market Leader in Asia  
We are a leader in the field of Bluetooth&reg; testing and certification in Asia &ndash; the most important Bluetooth market. Our facilities in Japan and Greater China Taiwan are Bluetooth qualification test facilities (BQTF), accredited by the Bluetooth Qualification Review Board (BQRB) and offer a comprehensive range of testing and certification. In addition, our facilities Korea and Hong Kong offer similar capabilities. You can outsource qualification of Bluetooth products to any of our facilities.

Bluetooth Testing

STC is the only testing laboratory in Hong Kong accredited to perform USB testing in full compliance with USB-IF guidelines to assist manufacturers in achieving certification for USB logo placements on their products.  To meet industry needs, STC has formed a partnership withNational Technical Systems (NTS)located in the United States to provide comprehensive USB testing services in Hong Kong including pre-compliance USB testing, USB performance testing and laboratory rentals for USB product debugging.  NTS and our USB Testing services include: High-Speed, Full-Speed and Low-Speed PeripheralHost Add-InHubsSystemsSilicon BuildingCable AssembliesConnectorsUSB On-the-GoProducts forUSB Testing Add-in Host AdaptersAudioBluetoothCDs/ DVDsCable Assemblies &amp; ConnectorsCable AssembliesCamerasDesktopsGame DevicesHard DrivesI / O AdaptersMedia Card ReaderMobile PhonesModems / BroadbandMonitors / Display DevicesNotebooksPDAPoint of Sale DevicesPrinterScannersSpeakersTelephonesToys and more If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

USB Testing

Vertex Micro AI Limited

Vertex Micro AI is a leading AIoT solutions provider, specializing in cloud-edge integration technology. Through our proprietary tri-core heterogeneous SoC architecture, we empower traditional hardware with voice interaction and generative AI capabilities, eliminating the high barriers for hardware manufacturers to adopt AI and making creative solutions readily accessible. 

AI Printer Solution

Socif Limited

SOCIF AI Video Analytics Technology enables real-time object and people detection using the existing CCVTV or camera, providing real-time alerts and data reporting and analysis. 

AI Video Analytics Solution

With over 50 years of experience, STC has been a leader in EMC testing and is a&nbsp;Local Certified Body (LCB) under the&nbsp;Office of the Communications Authority (OFCA)&nbsp;of the Hong Kong Government. Our state-of-the-art laboratory, RF and EMC testing chambers allow for ElectroMagnetic Interference (EMI) and ElectroMagnetic Susceptibility (EMS) testing, as well as RF testing for radio frequency products.

STC&rsquo;s EMC testing and RF testing capabilities are recognized and comply with internationally standards to help manufacturers, retailers and importers meet regulatory requirements and quickly get products to international markets.

  Radio Frequency (RF)&nbsp;Testing   	 American RF Standards&nbsp;(ANSI C63.10, 47 CFR Part 15) 	 Australian RF Standard&nbsp;(AS/NZS 4268) 	 Canadian RF Standards&nbsp;(RSS-Gen, RSS-210, RSS-220, RSS-222, RSS-247, RSS-310) 	 European RF Standards&nbsp;(EN 300086, EN 300113, EN 300220, EN 300296, EN 300328,EN 300330, EN 300390, EN 300422, EN 300440,&nbsp;EN 301166, EN 301178, EN 301357, EN 301559,&nbsp;EN 301893,EN 302018,&nbsp;EN 302065, EN 302195,&nbsp;EN 302208, EN 302502, EN 302536, EN 302608, EN 302609, EN 303203, EN 303204, EN 303406,EN 303354) 	 Hong Kong Radio Specifications&nbsp;(HKCA 10XX)  If you have any further question, please feel free contact us at&nbsp; enquiry@stc.group &nbsp;or visit our website:&nbsp; https://www.stc.group/en/contact 

Radio Frequency (RF) Testing

Professional Display Solution that allow our customers to easily and consistently develop top quality content and create impactful messages via an integrated network media.  

Professional Display Solution

Drawing on a complete understanding of government regulations and policy that apply to electrical and electronics industry, STC can help you to test Radio Frequency (RF) and ElectroMagnetic Compatibility (EMC) in accordance with various international standards.  EMC Tests for FCC and IC standards: A. Digital Devices Computer or peripherals Class AComputer or peripherals Class B (e.g. Keyboard, display card, multi-function card, printer, monitor, mouse and scanner etc.)Digital Devices (e.g. video game, etc.)Game controller for console [e.g. Playstation, etc.]Battery-operated Handheld GamesAC operated handheld games B. Radio Frequency Devices AM/FM Broadcast Receiver (DC)AM/FM Broadcast Receiver (AC or AC/DC)DC operated CD/VCD/DVD PlayerAC/DC operated CD/VCD/DVD PlayerAM/FM Broadcast Receiver with CD/VCD/DVD PlayerCar Radio with CD/VCD/DVD27 MHz Remote controlled Transmitter (1 channel)27 MHz Walkie Talkie (1 channel)49 MHz Transmitter (1 channel)49 MHz Walkie Talkie (1 channel)49 MHz Receiver (1 channel)315 to 433 MHz Transmitter (1 channel)315 to 433 MHz Receiver (1 channel)900MHz Transmitter (1 channel)900MHz Receiver (1 channel)2.4GHz Transmitter (1 Pair)Multi-band Broadcast Receiver (AC or AC/DC)Microwave OvenEnergy Saving LampElectronic BallastPocket TVTo know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

EMC Tests for FCC and IC standards

Aiketon Electronics Ltd

 We offer professional testing services to PCB assembly lines. The AOI service is provided to ensure high-speed, accurate and consistent inspection. Our advanced equipment and dedicated workers can guarantee reliable testing.    AOI, functional testing, and ageing testing available.   Experienced in this field.  

PCB Assembly Testing

Mecca Electronics Co Ltd

AOI inspectionAutomated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew). It is commonly used because it is a non-contact test method. 

3D Automated Optical Inspection (AOI)

Daiwa Metal Works Co Ltd

The fabric lightbox combined the aluminum outer shell and the weather-resistant fabric of the illuminated face. Specified and customized graphics are UV inkjet printed on the material, then spring-tensioned into the metal casing, CE approved, and ECA rated LED installed inside. Its structure is simple, and the price is affordable. Fabric light box has even light, larger illuminated area, brighter and better advertising effect than the traditional lightbox, which is suitable for shopping malls, airports or outdoor venues.  √Breathable fabric can reduce the risk of overheating caused by long-term lighting; √Even light, larger illuminated area, brighter and better advertising effect compared with traditional light box; √Energy-saving, brighter and long-life LEDs are used; √Simple structure design withe high-quality aluminum which is easy for installation, maintenance and replacement; √Affordable price.  Materials: Fabric and Aluminum frameMetal Surface: Painted aluminumLED Colors : cool white (6500K)Application: Indoor and outdoor, fit to facades, hang from canopies or bond to walls, for various signs in chain stores, civil engineering site, public facilities, etc.Application (Industries): Government, catering, medical, banks, retail and high-end industry, municipal engineering, shopping malls, etc.Scene Display 1Scene Display 2Detail 1Detail 2 

Single Side Light Box— Fabric Face Light Box

We offer radio frequency and electromagnetic testing services for customers. We use high-quality equipment to test and provide precision results. Our services are professional and reliable. Providing technical support services.Assist and strengthen the product modification.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Radio Frequency and Electromagnetic Testing

Nemko Hong Kong Limited

Testing and certification of IT equipment is a major part of Nemko’s core business. As a leading provider of CB certificates for many years, we have built up extensive competence in this field. With representation in technical committees for IT we also have high influence in the questions about standardization and are able to find solutions for you. Together with our partners throughout the world we are able to give you market access based on our CB. The new IEC 62368-1, new hazard based standard combined for IT and AV products is now finalized. Nemko are ready to guide you through the process to get your products certified according this standard. Standards coveredIEC/EN/UL/CSA 60950-1IEC/EN/UL/CSA 62368-1IEC/EN62040 for UPSIEC/EN/UL/CSA 60065IEC/EN 60825-1 for lasersNemko, a leading provider of CB’s for IT equipment 

Testing IT AV products

Nemko can issue MIC certificaiton for radio and wireless product to get market access to Japan.  Our certification scope covers all radio under the Japan MIC regulation, naming B1, B2, B3. Nemko TCB provide one stop wireless certification for the markes covering EU, US, Japan , Karan, Hong kong and Taiwan. 

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