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

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

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

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

Centre For Perceptual And Interactive Intelligence (CPII) Ltd

The controllable Cantonese text-to-personalized speech generation system was developed by the research team led by Professor Helen Meng and Professor Xixin Wu. It uses speech language intelligence technology to analyze and process text, and convert it into corresponding speech content. At the same time, we provide personalized service, including customized pronunciation dictionaries and voice, to better meet the requirements of users and target scenarios. It provides more distinctive and convenient services for audio content creation. 

The First Controllable Cantonese Text-to-Personalized Speech Generation Technology

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

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

The Hong Kong Standards And Testing Centre Ltd (STC)

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

UltraOne Technologies Limited

Services and Solutions: Intelligent Lighting System, Integrated AV Control 

Central Control System

 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

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

SnapFeedback Limited

LinkedIn: SnapFeedback.ai | Website: https://web.snapfeedback.co/better-speech/  Better Speech &gt;&gt; Elevate Your Speaking Skills at Every Level  From precise pronunciation to compelling storytelling, choose a tailored exercise to evolve your communication skills with real-time feedback, sentiment alignment, and personalized progress tracking.   AI-Powered Speech Exercises: From Basics to Brilliance Choose a specialized exercise to improve your pronunciation, emotional tone, or narrative structure.  From refining your accent to mastering complex storytelling, get the data-driven feedback you need.    Perfect Your Accent, One Word at a Time Build confidence in your pronunciation through AI-powered phonetic analysis. From daily basics to sophisticated vocabulary, get the real-time feedback you need to speak with total clarity until every word is voiced perfectly.  Speak with Impact, Not Just Words Bridge the gap between what you say and how you say it using real-time emotional detection and feedback.    Perfect Your Professional Pitch Transform brief mentions into high-impact narratives with the actionable feedback you need to ensure every story is compelling.  Your Progress at a Glance A comprehensive breakdown of your speaking metrics.  Identify key areas for improvement to elevate your overall performance.     

Better Speech

VISION STORY INTELLIGENCE LIMITED

VisionStory is a AI video creation platform that transforms a single photo into expressive talking videos. Powered by generative AI, it helps enterprises and content creators produce professional campaign or training videos without filming or editing. The solution enables global buyers to scale video production with lower cost and higher efficiency. 

VisionStory AI

REC Green Technologies Co., Ltd.

iFCU™ has successfully attained the Platinum recognition in CIC Green Product Certification.iFCU™adopted the patented technology with rotor of a permanent magnet to generate magnetic flux. Its advantages are to eliminate the source of power loss and achieve a high energy efficient operation.By replacing mechanical brushes, permanent magnet motor can also minimize the noise level and waste heat generation, thus improves motor lifespan.With variable speed drive, the motor further enhances efficiency system compared to traditional fixed speed AC motor designs.Major Features:Variable speed FCU fully controllable “AUTO” mode is available in iFCU™, stepless variable fan speed is controlled based on room temperature set point. Reduce energy use while maintaining comfortable condition, e.g. unoccupied mode to maintain the minimal RPM and energy ussage. Programme Customization to fit client’s application/configuration Tailor-made programme to work with different system and fit the occasions requirements. Modbus Thermostat, Room control unit (0-10V), Group Control, RPM adjustment &amp; wireless group control etc. Duct type sensor Installed in return-air box to control temperature accuracy up to ± 0.5oC to increase human comfort. Both high &amp; low static Applicable to both high &amp; low static pressure setting. Wi-Fi Control Can be controlled through any mobile device. 

iFCU™ Intelligent Fan Coil Unit (EC Motor / BLDC Motor / PM Motor)

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 R&amp;TTE: 27 MHz Remote controlled Transmitter and Receiver27 MHz Walkie Talkie40 MHz Remote controlled Transmitter and Receiver433MHz Remote controlled Transmitter and Receiver868MHz Remote controlled Transmitter and Receiver2.4GHz Remote controlled Transmitter and ReceiverTo 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 R&TTE

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

We provide fully turn-key solutions that integrate innovative EMS products with quality manufacturing. Our industry focus includes industrial products, high end telecommunications, office automation, professional audio and video products, automotive electronics, medical devices, etc. The advanced solutions are sure to keep you on the cutting edge.
 
  Covering a wide industry. 
  Experienced in this field. 
 

EMS Turn-Key

Surface Mount Technology Ltd

 Our research and development service focuses on switching-mode power and micro controller. We produce standard-design products with high quality, function, and precision. We also engage in providing tailor-designed electronic solutions and upgrade of OEM products. 
 
  Structured systems for great efficiency. 
  With advanced facilities and equipments. 
 

Research and 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

STC offer Electromagnetic Compatibility (EMC) Testing services for medical devices such as: Medical Electrical EquipmentIn Vitro Diagnosis (IVD) Medical EquipmentElectromagnetic Compatibility Testing (EMC) IEC / EN 60601-1-2CISPR 11 / EN 55011IEC / EN 61326-1IEC / EN 61326-2-6FCC Part 15 / Part 18ICES-001 / ICES-003 Radio Frequency Testing (RF) EN 300330-1; EN 300330-2 (9 kHz to 30 MHz)EN 300220-1; EN 300220-2 (25 MHz to 1000 MHz)EN 300440-1; EN 300440-2 (1 GHz to 40 GHz)FCC Part 15 / Part 18; RSS-210Bluetooth EN 300328 (2.4 GHz)FCC Part 15 / Part 18RSS-247Wi-Fi EN 300328 (2.4 GHz TRx WiFi b / g / n)EN 301893 (5.8 GHz)FCC Part 15 / Part 18RSS-247If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contacTo 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.  

Electromagnetic Compatibility for Medical Devices

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

STC's EMC testing and RF testing capabilities are recognized and comply with international standards to help manufacturers, retailers and importers meet regulatory requirements and quickly get products to international markets.  Our experts also offer professional technical support services for product improvements and modifications to meet stringent standards of various countries and on-site RF and EMC testing for larger equipment including measurements for offices, giant machinery, casinos, railway EMC Testing and human exposure to Environmental ElectroMagnetic Fields (EMF) testing.  Electromagnetic Compatibility (EMC)Testing American FCC StandardsANSI C63.4, 47 CFR Part 15,47 CFR Part 18Canadian EMC StandardsICES-001, ICES-003, ICES-005European EMC StandardsEN12015, EN12016, EN50121-x-x, EN50130-4, EN55011, EN55013, EN55014, EN55015, EN55020, EN55022, EN55024, EN55032, EN55035, EN60601-1-2, EN61000-3-x, EN61000-4-xx, EN61000-6-x, EN61204-3, EN61326-x-x, EN61547, EN62040-2, EN301489-xxTo 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. 

Electromagnetic Compatibility (EMC) Testing

EMC Toys Testing Electromagnetic Compatibility for Toys Whole toy testingAS/NZS CISPR 14, C-Tick(RF toys)EN 55014-1/55014-2RED (RF toys)FCC Part 15 (RF toys)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/services/detail/toys 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. 

My Sourcing