Celebrat A4 Wireless Headset

Specifications:

• Wireless Version - V 4.2
• Transmission Distance - 10 m
• Speaker Type - Ø 40mm
• Speaker Impedance - 32Ω
• Rate Power - 10mW
• Frequency Response - 100Hz ~ 10KHz
• Sensitivity: 100dB ±3dB
• Working voltage - 3.7v
• Low voltage indicator - 3.3V
• Music time - 8-10 hours(70% volume)
• Call time - 8-10 hours(70% volume)
• Standby time - 60 days
• Charging voltage DC 5V
• Charging port - Micro USB port
• Charging time - about 2 hours
• Charging current - 150mA
• Audio input interface - Ø 3.5mm
• No connection automatic shutdown time - 5 minutes
• Battery specification - 300mAh polymer lithium battery
• Compatibility: for most of mobile phone/portable media player/PC