The Bluetooth headset covers a built-in rechargeable battery, please charge at least 4 hours before using it for the first time.
The bluetooth headset can be on or off during charging it. When it is charging, the indicator shows a steady red light. After the battery is fully charged, the indicator automatically shut off.
When it is low battery, the indicator shows red shimmering light, then you can hear ?Do?? voice, after it finished, the headset automatically shut off. The charger is used by USB cable, and you can use PC USB interface or travel charger to charge it. IT takes about 2.5 hours to fully recharge battery
Correspond with Bluetooth Specification V2.0 with EDR
Working Distance: within 10M
Charger Specification: DC 5.0V 500mA
Charge Time: <=2.5 hours
Frequency Table: 2.4026GHz-2.480GHz
Calling Time: >=8 hours
Standby Time: >=270 hours
Headset Size: 154.7*140*50mm