Bluetooth Hat Headphones

We are offering bone conduction bluetooth hat headphones.
Item description
features:
* multi-function key and microphone on the hat, easy to work
* wireless connection to earpiece or hearing aid
* hands-free cell phone communication
* voice dialing available (need cellphone provider support)
* battery life 15 hours talking time or standby 100 hours
* build-in rechargeable battery
* cool blue light indicator
* the battery time is much longer (battery life 3 hours talking time or standby 100 hours)
* much easier to use, and hidden
* the hat can use at many places. More popular and suit to all kinds of people. Different type for you to choose.
specifications:
* bluetooth version with 3.0+edr
* transmission range: to cellphone