Bluetooth Neckband Earphone

We are offering bluetooth neckband earphone ,wireless sports earphone.
Bluetooth specifications
model : hbs-730
frequency response: 20hz-20khz
working current: 25~30 ma
bluetooth version: csr4.0, bc8635 chipset
support: hsp, hfp, a2dphandsfree(connect two bluetooth devices)
effective range: 10~20m
input dc: 5v130ma
microphone: build-in
size of the body: 155mm*155mm*19mm
weight: 32g
frequency range: 2.401-2.480ghz
distortion factor: ≤ 1%
music time: up to 10 hours
talking time: up to 15 hours
standby time: about 500 hours
charging time: 2 hours
rechargeable: usb micro 5 pin cable
wear ways: plug-in
output power: 2*20mw
snr: sn≥ 95
colors: available 10 colors which list in the link
product features
fashion design, high-end products
support all bluetooth devices
common to all phones
adjustable headset comfortable to wear
support a2dp music player
long talk time
the function keys: volume + -, music playback, pause, previous song, next song
then hang up, reject calls, last number call-back
payment term:
we accept paypal, western union, tt, no another payment method acceptable.
 tt:30% deposit , balance should be paid before shipping .
Shipping term:
we use express, such as ups, fedex, dhl, ems, tnt, and so on.
We would like to arrange by air or ocean shipping for you as your requirement
warrantee & after-sale service: 
1. All of our products have 1 year warranty 
2. Man-made destroy will be exception 
3. After the warrantee time, if we still in cooperation, we will give cost repairment if still can repair.
4. For reducing the cost of our customers, we can supply the materials or tech support to them, help them fix the problems in their hands