2015 industrial wireless bluetooth noise cancelling earphone and headphones for walkie talkie

2015 industrial  wireless  bluetooth noise cancelling  earphone and headphones  for walkie talkie .

Features:

1. Bluetooth 3.0 wireless transmission protocol
2. High-fidelity sound quality and stable performance and excellent hands-free call 
3. Supports remote control of play/ pause, fast forward, rewind, volume+/-
4. Lightweight,comfortable design for all-day listening.
5. Accept incoming calls or toggle between tracks with the touch of a button.
6. Support most of the popular smart phone,like iphone,ipad,android phone,laptop and desktop pc
7.Music will stop automatically when receiving an call
8.Call transfer between the headset and Bluetooth mobile phone

9.Support Line-in,FM radio,TF card,Hands-free call,USB port for charging
10.Pink/Red/Green/Blue/White/Black color optional
11.CE&ROHS compliance

Specification:

1.Bluetooth Version:V2.1+EDR Class 2

2.Bluetooth profiles:A2DP,AVRCP,HSP,HFP

3.Audio format:MP3/WMA/WAV/SBC

4.Bluetooth operating distance:10 M

5.Frequency range:2.4GHZ-2.48GHZ

6.Speaker diameter:40mm,Impedance:32Ω,speaker output:40mW

7.Max output distortion:≤1%

8.S/N ratio:90dB

9.Built-in battery capacity:400mAh

10.Working time:Talking time:12hours,music playing time:10 hours

11.Standby time:Approx.250 hours

12.Support:Bluetooth/FM/SD Card/AUX/Hands-free call