1. Bluetooth Specification: 4.2 2. Wireless transmission range: 10M 3. Battery capacity: 600 mAh 4. Built-in voltage: 3.7V 5. Play time: 2H 6. Power: 5W 7. Size: 74.5x75.1x94.5mm 8. Support Bluetooth Connection, Audio Input, FM Radio, Micro SD Card Direct Reading, U Disk Direct Reading, MINI Micro USB Charging 9. Bluetooth calls can be answered with one button
