1. Bluetooth Specification: 4.2
2. Wireless transmission range: 10M
3. Battery capacity: 1200 mAh
4. Built-in voltage: 3.7V
5. Play time: 3H
6. Power: 5Wx2
7. Dimensions: 72.6x72.9x178.7mm
8. Support Bluetooth connection, audio input (with reset key., FM radio, micro SD card direct reading, U disk direct reading, MINI Micro USB charging
9. Bluetooth calls can be answered with one button