For Samsung Galaxy Watch 4 Classic 42mm 20mm Holes Breathable 3D Dots Silicone Watch Band(Black) Tag-11 inch 2020 Intercom doorphone for double rooms

Intercom doorphone for double rooms

Speed regulation: variable frequencyspeed regulation

40HQ: 948 cartons * 160 pcs = 151680 pcs

Interface rate: USB3

adapts to different grade voltages

For Samsung Galaxy Watch 4 Classic 42mm 20mm Holes Breathable 3D Dots Silicone Watch Band(Black) Tag-11 inch 2020 Intercom doorphone for double rooms1. Environmental grade silicone production, no peculiar smell. 2. Unique locking device makes it more comfortable to wear. 3. Porous and breathable design, suitable for a variety of sports scenes. 4. 14 colors, suitable for a variety of scenes. 5. The package has only a watch strap, no watch.