This is not only a Bluetooth headset, but also a wired headset. With the included cable, you can still enjoy favourite music when the battery runs low.
Specification: Operation Range: 33feet
Music/Talk Time: Up to 25 Hours
Charging Time: Up to 3 Hours
Charging Voltage: 5V
Battery Capacity: 3. 7V/420mAh
Notes: 1. The microphone only works in the wireless mode. 2. Please take off the headphone every 1-2 hours to get your ears relax.
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