Model: T4
BT version: Bluetooth 5.0
Frequency: 2.402ghz-2.480GHZ
BT distance: 10-20M (depending on the environment around the equipment such as obstacles)
Microphone transmission distance: ≤1m
Lithium-ion battery: 3.7V / 180mA
Playing time: ≤8 hours
Charging voltage: 5V
Charging time: ≤2 hours
Standby time: ≤160 hours
BT pairing name: T4 

Note:   
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

 

 Included:    
1 x Bluetooth Motorcycle Helmet Headset
1 x Charging Cable
1 x User Manual