What's in the box:

Motorcycle Motorbike Helmet Bluetooth Headsets Wireless Headphones Bluetooth 4.0 Dual Stereo Speakers Hands-free with Mic Earphone for Smart Phones Bluetooth-enabled Devices (Standard)

Helmet Headsets is specially designed for motorcycle riders which can wholly integrated into your helmet. It is easy to operate and control with in-line control. It's convenient for motorcycle riders to pick up calls, listen to GPS and music with dual stereo speakers.

Features:
[Dual Stereo Speakers &Strong Compatibility]
With Dual Stereo Speakers, crystal clear voice quality gives you clear communication, HD music and clear GPS. Wireless listen to music integrated with Bluetooth technology. Bluetooth 4.0+EDR technology is compatible with almost all Bluetooth-enabled mobile devices.
[Hands-free Call]
Helmet Bluetooth headset allows you to pick up hands-free call safely. Truly free your hands. Never worry about missing any call when riding a motorcycle.
[In-line Control]
Easily and conveniently control answer, reject a call and volume with in-line control.
[Simple Installation]
It is very easy to install into a helmet. Remove the side padding from the inside of the helmet(if it can be removed) and place the devices and at the height of your ears.
[Endurance Time]
With built-in rechargeable and lithium 150mAh battery, it offers up to 6 hours of talking time and 60 hours of standby time.

Specification:
Bluetooth Version: V4.0+EDR
Frequency Response: 2.4026GHz-2.480GHz
Transmission Distance: about 10M
MIC Distance:1m
Battery: 3.7V/150mA
Charging Time: 2.5 hours
Standby Time: about 60 hours
Working Time: about 6 hours
Item Weight: Approx. 51g / 1.76oz
Package Size: Approx. 19.5 * 12 * 3.5cm / 7.68 * 4.72 * 1.38in
Package Weight: Approx. 155g / 5.45oz

Package List:
1 * Helmet Headsets
1 * USB Charging Cable
1 * User Manual