1.newest design

2.Unique appearance
3.With hands-free function,easy to answer the phone
4.With good sound and clear voice
5.Two function selection: Bluetooth transmission and audio input

3.0+EDR Bluetooth version
Sound remind once pairing
Set-in Li-ion chargeable battery                                                                                                                 Button control call back functionSNR: >75db
Output power: 2.2W, speaker impedance 4(Ω)
Frequency range: 20hz-200k(Hz)
Transmitting power(MAX): 4db
Receive sensitivity(TYP):-86dBm
Effective wireless distance: ≤ 10 meters
USB charging voltage :DC5V
Inner Battery :500mah
Play duration :4hours (50% percent of the volume)
Size:8*10(mm), colors: white, black
Weight:0.25kg
Button function:1.The hands-free Button - answer or hang up the phone, play or pause the music
         2.VOL+ Button:Increase Volume
         3.VOL- Button:Reduce Volume 
         4.ON/OFF:Open or close the power