Features:
The helmet BT headset is designed according to the internal structure of the motorcycle helmet.
Using the latest 4.1+EDR BT technology, superior signal transmission. Ultra low power consumption, supporting all BT devices.
Support automatic phone answering function, safe and fast.
Support up and down music, volume addition and subtraction, playback pause, automatic callback and other functions, easy to operate and use.
Built-in 500mA large capacity battery, long stand-by and working time.

Specification:
Product name: helmet BT headset
Color: Black
BT version: V4.0+EDR
Frequency range: 2.4026GHz-2.480GHz
Maximum Number of Speakers: 2
Transmission distance: 10M (transmission distance varies depending on environmental factors and devices)
MIC distance: ≤ 1 meter
Battery: 3.7V/500mA rechargeable bttery(built-in)
Charging time: 4-5 hours
Standby time: about 180 hours
Continuous working time: about 32 hours
Item size:5*3.5*1.2 cm / 1.97*1.38*0.47 in(L * W * H)
Item weight: Approx.116g /4.09oz
Package size:19*13.5*2.3 cm / 7.48*5.31*0.91 in(L * W * H)
Package weight:173g /6.1oz

*Note: Headphone only, no helmet included.

Packing list:
1 * BT Headset
1 * USB Cable
2 * Magic Sticker Bottom
2 * Magic Sticker Top
1 * User Manual