 
  Color Name: Black
    Dimension (L×W×H): 60mm×60 mm×44mm (closed resonator)
    Net Weight: 83g
    Speaker: MAGNETISM PREVENTФ40 MM 2W/4Ω
    Loudspeaker Output: 2.5W
    Rating Power: 2.0W
    Frequency Response: 100Hz-20Khz
    Signal-to-Noise: ≥80db
    Distortion: ≤1.0%
    Playback Time: Up to 11 hours
    Battery Charge Time: 5V - 2.5 hours.