For Samsung Gear S3 Classic 22mm Textured Silicone Solid Color Watch Band(Sky Blue) Tag-Wireless Doorbell Environmental testing mode

Environmental testing mode

7mm lens Horizontal 170 degree wide angle

to achieve long-distance control of music play/pause/volume adjustment

High quality front camera for Xiaomi Redmi 2

3) Support RS 232 Serial interface (DB9)

For Samsung Gear S3 Classic 22mm Textured Silicone Solid Color Watch Band(Sky Blue) Tag-Wireless Doorbell Environmental testing mode1. Environmental grade silicone production, no peculiar smell. 2. Equipped with quick release watch needle design, installation is more convenient. 3. Unique texture design, more wear resistant and durable. 4. 10 color combinations, suitable for wearing in various scenes. 5. Note: The package only contains the watch strap, not the watch body.