Overview:
New product-Bone conduction bluetooth headset
Through the bones themselves carry sound to the ear
Unlike previous in-ear headphones lead to hurt ears
This new headset will be more confortable and advanced

Technical parameters:
Brand: ZHDA
Models: ZHDA-100
Launch time: 2015
Category: back-headphone/ bluetooth headsets
Way to wear: back hanging
Headphones output audio: portable audio !#!amp!*! vidio devices
Connector:USB
Microphone:-42dB+-3dB
Color:White Black silver Gold
Frequency response range: 20-20000 (Hz)
Sensitivity: 123 +-5 (dB)
Uses: bluetooth earHorn
Speaker type: bone conduction speakers
Playing time: for eight hours
Range: 10 m
Battery: Lithium ion battery (360 mah)

Official standard accessories:
Packaging Box
Storage bag
User manual
Earplugs
Cable