Bingozones B1 Bluetooth Headphone with TFcard

version of Bluetooth: V5.0 + EDR
Transmission Power: Class II
Effective distance: 10M
Bluetooth Sensitivity bingozones B1:-108dB
Frequency: 2.4 – 2.4835 GHZ
Bingozones B1 Plug type: 3.5mm
Bingozones b1 Battery: 500mAh
Working hours: About 12 hours
Charging time: About 3-4 hours