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
