Please note: Red, Blue, Gold, Black, Grey Support the TF card. Yellow, White, Green, Purple don't support the TF card.
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)