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

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 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

TUV Rheinland HK Ltd

  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

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

Centre For Perceptual And Interactive Intelligence (CPII) Ltd

This technology aims at empowering the functionality of conventional augmentative and alternative communication (AAC) applications with language AI. By using this AAC technology, people having communication disabilities can overcome their difficulties and conduct daily communication. This application is definitely improving their daily lives and enhance social inclusion.  

Smart Augmentative and Alternative Communication

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

A And P Productions Ltd

we can provide one stop service from OEM and sourcing items under our customer need. please contact us for more information 

 we can provide your own design and OEM project or sourcing business for our customer 

Our engineering team are highly experienced not just only 2.4GHz but also the higher frequency (up to 10GHz) data communication. Propagation provides customized wireless communication solutions. Our RF engineer interested in Bluetooth®, Wi-Fi® and UWB technologies Embedded Linux Propagation provides embedded Linux driver/application development service. Embedded Firmware Propagation provides firmware development service. We have extensive experience in different platform, TI, Microchip, Freescale, Atmel, ST etc. Apps Propagation has in house Native app development (Objective-C/Swift in iOS and Java in Android). We have been publishing 40+ apps for both Android and iOS since 2009. Cloud Server With having the one stop solution of Embedded WiFi application, Propagation also provide the cloud development service for the IoT application. The cloud development includes the database management, cloud to cloud application (like Alexa skill) and the interface to the mobile interface. Based on the AWS development platform with Mongodb database, IoT application can be easily implemented. 

Firmware, App, Server Development

Bright Sky Electronics Co Ltd

Little LED Rabbit

Yangzhou Huacai Opto Co., Ltd

 COLORS HK Lighting Fair Wraps Up Successfully Time: 27-30 Oct 2024 Address: Hong Kong  The 2024 HK International Lighting Fair is drawing to a close. Focusing on the theme of “Light &amp; Live”, COLORS showcased the fusion of lighting technology and aesthetics.  Space Design The booth adopts an open layout to create a visual feast. The left and right sides of the independent zone display different ranges of light products, and the NNR40 and Infinite Lights hanging on the top add a sense of flow and vitality to the space.    New Products Arch Neon: This series is designed for outdoor environments, suitable for building facades, swimming pools, saunas, and other harsh environments, and is the perfect solution for facade lighting.    Infinite Lights: Customized design is available on demand, covering shape, size, and splicing methods, providing customers with unlimited creative possibilities.  Customer Reception During the exhibition, the booth was always crowded with people. The innovatively designed products and lighting solutions attracted countless industry insiders and partners to stop and exchange ideas and gained wide attention and praise.    Customer Reception During the exhibition, the booth was always crowded with people. The innovatively designed products and lighting solutions attracted countless industry insiders and partners to stop and exchange ideas and gained wide attention and praise.   Construction Snapshots The construction process of the exhibition is like a creative and technical “show”, the product development and construction teams are striving for excellence in lighting, installations, and details of the exhibition, to ensure that each piece of the exhibit is perfectly presented.    As the 2024 HK Lighting Fair comes to an end, COLORS will continue to provide global customers with more aesthetic and functional lighting solutions,creating unlimited possibilities. Stay tuned.  

COLORS HK Lighting Fair Wraps Up Successfully

 we can provide your own PLUSH design and OEM project or sourcing business for our customer 

Sun Flame Co Ltd

This is design section. We have been discussing about design every week. Also, we can make OEM projects. The MOQ 300pcs to 500pcs depend on your request.  

Design discussion

Kensen Digital Limited

Kensen Digital is an innovative and technically oriented company focus on developing and manufacturing of digital electronic products including various types of digital radio and wireless technologies such as in-car and portable DAB/DAB+/HD radios. We provide ODM/OEM services as a turnkey solution provider to realize your concepts and ideas. We work with customers closely at all stages of design and manufacture, from concept to finish, to bring unique products. When customers provide concept and specifications, we then work out a rough total cost for design, prototype, and estimated unit cost. 

ODM/OEM Services

ATR Manufacturing Ltd

We provide EMS solution. Our service includes OEM, OBM and ODM manufacturing. Our product experience includes Medical and Healthcare Equipment, Electric Appliance Control Units, Hospital Equipment, Temperature Monitoring Devices, Deodorizer, Light Tube, Safety and Security Equipment, Assistive Hearing Devices, Communication Equipment, Pest Control Units, Currency Handling Devices and PCB Assemblies. Our existing manufacturing plant is in Dongguan, China. We will have a new plant in Vietnam starting for Production by January 2020 at Phase-1; the Phase-2 facilities will be scheduled completion by end 2020.

OEM / ODM / EMS Manufacturing

Gateway Computer Resources Limited

Dynamix Dream Fit AI: Hong Kong’s First Real-Time AI Fitting Experience“More than just a mobile edit—this is a total redesign of the retail and event sensory experience.”Dynamix DreamFit AI seamlessly integrates cutting-edge AI with the traditional garment industry, making the fitting process effortless, visually stunning, and commercially driven.📸 Instant Capture, Seamless GenerationOur intuitive interface requires no complex prompts. A single snapshot instantly generates three powerful AI assets: AI Fitting Photos, AI Fitting Videos, and AI Scenarios Videos.Flexible Hardware: Momento &amp; Mirage 86 SeriesDesigned with a sleek, minimalist aesthetic, our hardware blends perfectly into high-end boutiques and exhibition spaces, elevating brand image while boosting audience engagement.Core Advantages:✅ High-Fidelity Detail: Accurately simulates fabric drape, texture, and tailored silhouettes.✅ Identity Preservation: Retains the user’s unique facial features and natural expressions.✅Advanced Customization Services : Premium customization services to create exclusive, branded AI scenes.Dynamix DreamFit AI isn't just for entertainment—it’s a powerful tool that turns fitting into ashareable, creative, and high-value commercial experience.

Dynamix Dream Fit Ai

E-PowerSpot Hong Kong Limited

E-PowerSpot has set up over 2,000 power bank rental stations across Hong Kong! With the advancement of technology, mobile devices have become an indispensable part of daily life, and E-PowerSpot is committed to ensuring that every user stays connected at all times. Our advertising displays are equipped with high-definition screens, effectively conveying information to various target audiences and widely applicable across different sectors in Hong Kong. E-Powerspot offers flexible partnership options; whether for short-term or long-term cooperation needs, we can provide customized solutions based on specific client requirements. All advertising displays support multiple playlists and can play in a 24-hour loop, integrating brand information into consumers' daily lives and becoming the advertising format closest to consumers and retail points. 

Digital Advertising Display for Charging Stations

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

Herald Datanetics Limited

HDL serves startup companies, leading Smart Home and Home Security providers, professional industrial service providers, Health &amp; Telemedicine companies and Fortune 100, etc.  HDL can ramp up products from small quantity of samples (for certification, market testing) up to huge volume demand (with continuous improvement). We have our owned factory located on 200,000 ft2 of land in Zhuhai, China. We can easily expand our production facilities and production line to fulfil customers business need with automation. 

OEM/ODM Contract Manufacturing Service

E-PowerSpot has set up over 2,000 shared power bank rental stations across Hong Kong! Our shared power banks are available for rental anytime, offering flexibility and convenience. They can be placed in shopping malls, hotels, retail stores, and 24-hour shops, helping users meet their power needs at any time. Through our app, merchants can effectively drive traffic and attract more customers. Additionally, merchants can provide coupons in collaboration with E-PowerSpot, which can be placed on our shared discount platform to achieve a mutually beneficial outcome. Merchants can also take advantage of a free trial of our electronic advertising screens and easily upload their promotional advertisements and menus through E-PowerSpot's backend. The high-definition screens attract customers' attention, providing a quick and convenient way to increase merchants' visibility. 

Charging Station Leasing Service

 Light Up Every Opportunity at HK Autumn Lighting Fair[COLORS Exhibition]Time: 27-30 Oct 2023 Address: Hong Kong  The HK Autumn Lighting Fair welcomed global industry members during its 4-day exhibition ending Oct 30.  With over 2,600 exhibitors, the premier fair showcased the latest lighting innovations and connected companies with international buyers seeking technologies and designs.  COLORS, as one of the exhibitors, we had fruitful conversations with industry peers and made valuable business connections.  We immersed ourselves in the high turnout and vibrant atmosphere at the fair. We welcomed the chance to network and discuss industry trends as well.    Our freshly launched lighting collections took center stage at our booth during the event, including CSP Dot, Free Cutting, MAGIC 360, FABRIC 360, GENIE 2, TLS-H, TLS-M15, etc.     Though the fair has wrapped up, our zeal for connecting remains. We hope to keep the talks going and see you again very soon.  

Light Up Every Opportunity at HK Autumn Lighting Fair

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

Wenzhou Lynns Design Co. Limited

At JEFFREY LEUNG EYEWEAR DESIGN, we believe that color tells a story—one that communicates a brand’s essence, emotion, and innovation. That’s why we’re excited to introduce our new professional color dyeing service, tailored specifically for 3D printed eyewear parts and frames.  As 3D printing reshapes the landscape of eyewear design, designers gain more creative freedom than ever before. Yet one common challenge remains: how to infuse vibrant, accurate, and consistent color into these advanced materials. Our latest service addresses this gap—bringing precise, high-quality dyeing to nylon-based 3D printed parts, while elevating every frame with striking, durable color.  We offer a growing library of curated seasonal palettes and custom color matches, tailored for brands that value individuality and design integrity. Whether you're launching a bold fashion-forward collection or crafting timeless pieces, our service supports Pantone matching and bespoke development to align with your exact brand vision.  Designed with both emerging and established brands in mind, our service provides: - Rich, even color coverage across complex geometries- High repeatability for production-scale consistency- Custom color creation guided by our in-house dye specialists- Finishing options: matte, satin, or semi-gloss coating  Whether you're creating limited edition prototypes or preparing for global production, our process is designed to scale with your needs. We work closely with international eyewear brands, independent labels, and fashion-forward designers to ensure the final product is both visually impactful and technically reliable.  The result? Colorful, expressive, and durable eyewear pieces that enhance your design narrative. From bold statements to understated tones, we help brands use color as a form of identity and distinction—a critical advantage in today’s competitive market.  Ready to explore the future of eyewear with us? --- Get in Touch We’re currently accepting bookings for dyeing consultations, sampling, and production for Q3 and Q4 2025. Whether you're looking to explore a new palette or scale up your next collection, we’re here to support you with expertise, innovation, and style. 📩 Contact us to request a sample or color consultation.  

🎨 JEFFREY LEUNG EYEWEAR DESIGN Launches Premium Color Dyeing Service for 3D Printed Eyewear Components

At JLX EYEWEAR, we've redefined what's possible in 3D printed eyewear finishing. Our proprietary post-processing technology transforms raw printed frames into luxurious wearable art, achieving a matte-shiny surface quality that sets new industry standards. These eight detailed close-ups reveal the meticulous craftsmanship behind every JLX EYEWEAR private label piece - notice how light dances across the perfectly balanced matte base while subtle luminous highlights accentuate each curve and contour.  Our multi-stage finishing process begins with precision mechanical polishing to eliminate all visible layer lines, followed by specialized chemical treatments that create the perfect matte foundation. The frames then undergo our signature coating application, where nano-level particles are carefully layered to build depth and dimension into the surface. The final hand-finishing stage ensures every millimeter meets our exacting standards, resulting in a tactile experience that feels as premium as traditional luxury materials.      What makes our finishing truly revolutionary is how it maintains structural integrity while achieving visual perfection. The matte surface provides sophisticated understatement, while the controlled shine adds dynamic energy that changes with movement and lighting. This proprietary technique allows for unprecedented consistency across entire collections - whether producing fifty or five hundred frames, each piece maintains identical surface characteristics.    For brands partnering with JLX EYEWEAR, this finishing technology opens new creative possibilities. Our process works seamlessly with complex geometric designs that would be impossible to finish conventionally, while offering customizable sheen levels from soft satin to high-contrast matte/gloss combinations. The result is eyewear that feels substantial yet lightweight, looks handcrafted yet technologically advanced.   Explore the future of 3D printed eyewear finishing at www.jeffreyleungeyeweardesign.com and discover how our surface technology can elevate your private label collection.  #JLXFinishing #MattePerfection#3DPrintedLuxury#EyewearInnovation#SurfaceTechnology#LuxuryFinishes#PrivateLabelExcellence#FutureOfEyewear 

My Sourcing