Specification:
Bluetoot Version:5.0 
Chipeset:JLAC6956A4        
Frequency:20Hz-20KHz
Sensitivity:95 db / 1 khz
Range Distance:10m
Music time:2-3H   
Charge time:1H
Charging Box: 300mAh
Earbuds: 40mAh 

Charging box:58*50*28mm

Earbuds:42*12*18mm