Standard: bluetooth V1.1
Using distence:10 meters
Audio frequency:15bits,S/N>60db
Frequency:2.4GHZ-2.4835GHZ ISM Band
Demension:L64mm*W24mm*H15mm
Weight:15g
Lithium battery build-in
Recharging time : 2-3hours
Using tempreture: -10C~55C
Saving tempreture:-20C~60C
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