Output power: 3W
Sensitivity ratio: 360mv
Input power supply: DC5V/500mA
Bluetooth version: Bluetooth V3.0+EDR
1.1.Please charge it over 2hrs before using,the red light will be lit when its charging.
2.Music playing time has relationship with its volume.
3.Do not use it in wet or hyperthermal environment.No raining knock.
4.Its bluetooth connection or selfie will be different depending on your paired bluetooth device.
5.It can charge by DC5V adapter or pc's USB interface and flashes red light when charging.
6.Standby time can last as long as about 48 hrs.
1 x Watch speaker
1 x USB cable
1 x User Manual