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Wholesale CRS 4.1 wireless Bluetooth single ear headset

?Function: enjoy the music ;answer and end the phone; refused to call; the last number redial; volume control, etc.

?Smart connection. You can connect two mobile phones at the same time.

?Battery capacity:55mAh   

?Charging time: 1.5 H standby time: 110 H

?Talk time: 4 H  Music time: 3.5 H          

?Bluetooth version: 4.1+EDR

?chipset: CSR

?RF Transmission power:90DB

?channel: Class 2

?size:L59*W15*H10MM.                                                 

?N.W:9.19g

?Transmission range:10m