Are you looking for a high-quality wireless headset to enjoy wonderful music and hands-free chatting during sport? We are proud to introduce professional and high-quality wireless back-headphone to you. This headphone can be used to listen to your favorite music， and its hands-free function can let you freely chat with your friends， families or colleagues during sports or driving， and you have no need to worry about miss any important calls. And， this headphone has mini size and fording construction and comes with the latest Bluetooth 4.0 technology. Moreover， the sponge earmuffs can greatly insulate the sounds around you， so you can hear your call clearly. It will bring you much convenience and fun. 

Features: 
Sport type back-hang in-ear design. 
High fidelity and stereo model make you enjoy wonderful music. 
Support hands-free calls.   
Intelligent built-in microphone with DSP technology ((supports Noise reduction !#!amp!*! Echo cancellation).
Equipped with high-grade CSR8635 Bluetooth 4.0 Chipset.
Enjoy stereo music from all Bluetooth-enabled devices， such smarts phones， PC， NoteBook， etc.
Equipped with a Micro USB charge port and can be easily charged by computer or any other device with USB interface. 
Easily control adjusting the volume， previous/next songs， answering/rejecting/ending an incoming call and redialing the last number. 
Supports Mute mode. 
Practicably engineered for sports such as， running， jogging， mountain-climbing.
Mini folding pocket size， easy to carry. 
Soft comfortable sponge earmuffs for long wear.
Meet the ergonomics design， perfect construction.                                        

Specifications: 
Model Number: BT513
Bluetooth version: Bluetooth 4.0 + EDR 
Support profiles: HSP， HFP， A2DP， AVRCP
Operation range: 10m Class 2
Battery: Rechargeable 3.7V 120 mAh Lithium-ion battery
Charging indicator: Red LED light (Charging) / Blue LED (Charging completed)
Volume control / Variable for per stage: Stage 16 / 1.5dB 
Charger adapter Output: DC 5V / 0.5~1.0A
 Frequency Response: 20 Hz - 20 KHz
Music playing time: 6 hours
Talk time: 7 hours
Standby time: 120 hours
Charging time: 2.5 hours 
Color: Black， White (Optional)
Main item weight: 17g / 0.63oz（Bare Machine）
Package weight: 18.0 * 10.0 * 2.58 cm / 7.08 * 3.94 * 1.10in
Package size: 78g / 2.75oz

Compatible Models:
For iPhone6 6Plus 5S/ 5C/ 5/ 4S/ 4/ 3GS/ 3G
For iPad 4th 3rd 2nd 1st For iPad Mini
For iPod Touch 4th/ 5th/ Nano 7
For Samsung Galaxy S5 S4 S3 S2， Note 4/ Note 3/ Note 2， Tab Series
For HTC One M7 M8 Desire X Series S V
For Lumia 800 820 900 920
For Sony Xperia Z1 Z2
For LG Pro 2 Series
Or other Bluetooth-enabled devices

Package list: 
1 * Bluetooth headset
1 * USB charge cable
1 * English User manual