Remote Photo Function. (Use the Device Control your phone to take a picture) Bluetooth 5.3 BluetootH Reciever Transmitter 2 in 1. Collar clip design. (Clip the Device on your collar to enjoy music when you sport, running... ) The actual object may have color difference due to different light or display Transmission distance:less than equal 10m Charging voltage:DC5V Charging interface: Type-C interface Battery capacity: 1000mAh Playing time:60h Colour:Black Material:ABS+PC Audio style is random,can not be chosen the specific Package Contents: 1x Bluetooth Adapter 1x Charging Cable 1x Audio adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Remote Photo Function. (Use the Device Control your phone to take a picture) Bluetooth 5.3 BluetootH Reciever Transmitter 2 in 1. Collar clip design. (Clip the Device on your collar to enjoy music when you sport, running... )