Bluetooth technology: V5.0
Frequency: 2.402 GHz to 2.480 GHz
Spreading distance: 10 meters
Minimum microphone distance: 1 meter
Battery capacity: 3.7V/150 mAh
Charging time: within 2 hours
Continuous working time: 6 hours
* Soft stretchable material for maximum fitness.
* 2 in 1 design,more convenient and wireless bluetooth headset connection to listen to your favorite songs,hands free to answer or hange up the calling.
* The LED lights on the hat provide great convenience in dark environments.
* Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time.
* Perfect Fit for outdoor hiking,jogging,skating,cycling,dog walking,waiting for bus in the winter etc.
1 LED Bluetooth Knit Hat
1 USB Cable