Specification：
Bluetooth Version：4.2
Output Power：5W
Charging Voltage: 5V
Batter Capacity：3.7V 430mAH
Working Time：4-5hours
Product Size：61*61*55mm

Features

1. mini portable bluetooth  speaker 

2. Support true wireless function.

3. Supports: Siri and Android Voice Calls, handsfree call

5. Auto-Turn off function after 40 minutes no-operate