This is a wireless speaker fits all motorcycle and bicycle helmets, which gives you music enjoyment on the way.

Features:
Hands-free call, ultra convenient for outdoor use.
Automatic answer calls in 3 seconds.
Can play wireless music when connected with BT devices.
Just install your helmet, and enjoy the music at anywhere and anytime.
Low power consumption with clear sound.

Specifications:
Color: Black
Material: Rubber
Working voltage: 3.4-4.3V
Working current: ≤50Ma
Speaker power: 3W
Built-in 400mAh lithium polymer battery
Working temperature：-20-55℃
Waterproof: IP54
BT function: Yes
Package Size: 15 * 6.5 * 4cm / 5.9 * 2.6 * 1.6in
Weight: 67g / 2.3oz

Package List:
1 * Wireless Speaker