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Sell Colorful fashion bluetooth wireless stereo headphones with mic 

Features: 
1.use stereo hi-fi speaker ,super bass sound  .                                                           
2.built-in FM raido, automatic search and play.                                       
3.support TF card to play music of MP3 format 
4.built-in LAN-IN interface, can connect your phone, mp3, laptop,etc .                                                               
5.built-in standard 300 mA 4C polymer rechargable battery,  continuous play music to 7 hours. 
6.USB data cable can download music while charging. 
7.Bluetooth V2.1+EDR , Support bluetooth HSP, HFP, A2DP and AVRCP protocol . 
8.Forward and backward functions ,pause function. 
9.one usb adapter cable and audio cable 


Specifiications: 
1. Frequency: 15Hz-20KHz. 
2. Output device: 40 mm diameter  white magnetic speaker 
3. Impedance: 32ohm 
4. Signal to noise ratio: above 85db 
5. FM frequency: 87.5 ~ 108.00MHz 
6. Polymer battery: 3.7V  550MA 
7. Listen to music power consumption time: about  7 hours 
8. talk time:  about 5 hours . 
9. charge time:  about 4 hours.