
Our Factory: Full Production Under One Roof
Injection molding, cable processing, assembly, acoustic testing, aging and packing — all in our own workshop in Dongguan, next to Shenzhen. Visit us, or book a live video tour.
Watch Our Factory at Work
Real footage from our workshop in Dongguan, near Shenzhen — assembly, testing and packing.
Molding to Packing, All In-House
We control every step that affects quality and lead time — no outsourcing of assembly or testing.






Key equipment
Assembly Lines






Testing Lab
Sound, signal, battery and material checks before anything ships.






Safety-Tested by an Independent Lab
20 of our models have been tested by Shenzhen GVT Testing Technology Co., Ltd. to GB 4943.1-2022, China's national safety standard for audio, video and IT equipment (a modified adoption of IEC 62368-1:2018). Every sample complied.
Full reports are in Chinese and are sent on request with your quotation. Selling in the EU, US or another market? Tell us where, and we will confirm which test documents are available for the model you choose.
Request Test ReportsFrom Incoming Parts to Your Shipment
What happens around the production line: parts are checked before use, materials are staged by order, and finished units are boxed by hand before they ship.
Incoming inspectionPlastic parts and packaging materials are checked at dedicated benches before they go to the line.
Material warehouseParts and materials are staged by order in the material preparation area.
Retail boxingEarbuds, manual and accessories go into the retail box — neutral, or your own branded box.
Packing lineEach unit is placed in its insert and closed by hand on the packing line.
- Shipping
Express, air or sea — to your door or your forwarder. In-stock orders ship in 3–7 days.
Meet the Team




See the line that will make your order
Pick a time — we will call you on WhatsApp or Zoom and walk you through assembly and testing.










