Awei Y331 Portable Bluetooth Speaker

• Bluetooth Version:  V4.2+EDR
• Track system:  Stereo (Dual Sound Track ）
• Battery capacity: 2000mAh
• Driver unit: 45mm
• Sensitivity: 150MS
• Impedance: 4Ω
• Rated power: 5W*2
• Driver power: RMS  5W*2
• Charging time: 4h
• Talk time: 10h
• Music playtime: 8-10h
• Bluetooth Protocol: A2DP / AVRCP / HFP / HSP
• Frequency range: 30Hz-20KHz
• Input voltage: DC5V-500mA
• Bluetooth frequency: 2.4GHz-2.480GHz
• Optimal talking distance: 1M
• Transmission Distance:  10M (barrier-free space)