• Support hands-free call, ultra convenient for outdoor use

• Automatic answer calls in 3 seconds

• Can play wireless music when connected with Bluetooth devices

• Just install in the front of helmet, and enjoy the music at anywhere and anytime

• Low power consumption with clear sound

• Fast installation with sticker

• Fits all motorcycle and bicycle helmets

Specification:

• Battery: 400mAh lithium battery

• Output: 3W

• SNR: >60dB

• Distortion: <1%

• Size: 90x24x14mm