Dimension: 65.2*50.1mm
Net weight: 57.4g
Speaker: 40mm/4ohm,2.5W
Rated power: 2.0W
Frequency range: 120hz-20khz
SNR: ≥89dB
Distortion: ≤0.3%
Playback time: 6H
Battery: 220mAh
Charge voltage: 3.7V±0.05V