Professional Manufacturer Handsfree Profile Mini Speaker

• Bluetooth version: JL 4.2
• USB charging voltage:  DC 5V
• Output power: 3W
• Impedance: 4Ω
• Built-in Power:  400mAh
• Operation frequency:  2.40G-2.480GHZ
• Operation distance: ≤10M
• Charging time: 2 hours
• Working time:  3hours (60%)
• Distortion: ≤3%
• Audio signal -noise ratio(SNR):  >75dB
• Receiving Sensitivity(TYP):   -96dB
• Available color: Black, Pink , White