Features:
Bluetooth standard: Bluetooth 3.0 EDR
Bluetooth communication range: Line without blocking state, more than 10 meters (mobile phones and other devices of different types and the environment will affect the distance).
Power supply: Built-in lithium battery
Music playback time: connect mobile phones to play 5~8 hours
Charging time: 3 hours (charging voltage 5v)
These headphones Support the TF Card and FM Radio