Please note: Red, Blue, Gold, Black, Grey Support the TF card. Yellow, White, Green, Purple don't support the TF card.
RED = White top, Red bottom
BLUE = White top, Blue bottom
GOLD = Gold top, black bottom
BLACK = Black top, Red bottom
GREY = Grey top, Black bottom
Bluetooth headphone 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)
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