Divoom Bluetune Bean bluetooth Speaker for Smartphones - Retail Packaging - Black Output power: 3W Total peak power: 6W Dimensions: 68L * 45W * 92Hmm Weight: 107g Driver Size: 50 mm micro driver Signal to noise ratio: 75dB Frequency response: 60-20000HZ Charging Voltage: 5V Bluetooth compliant: V3.0 Bluetooth profile support: A2DP Stereo Battery Capacity: 400 mAh Battery charge time: Minimum 2 hours Playback time: 6 hours