*Bluetooth profile:V4.0+EDR
*Bluetooth protocol:HFPV1.5,A2DPV1.2,AVRCPV1.4
*RF distance:10m
*Frequency:100Hz-20KHz
*SNR:≥85db
*Distortion:≤0.5%
*Working voltage/current:3.3~4.2V
*Charging voltage/current:DC 5V
*Battery capacity:300mAh
*Playback time:About 14H
*Rated power:3W
*Material:ABS