Features:1.Model: i72.Bluetooth version: V4.13.Working range: up to 10 meters on open air4.Frequency: 2.4G5.Playing time: 4 hours6.Standby time: 100 hours7.Reception level of sensitivity: 8.Rechargeable battery: 60 mAhCommon problems:1.NOT PAIRING: please check if the headset has entered pairing mode. (Turn the Bluetooth on and keep press the function key until the LED light flashing Red and Blue alternately);2.DEVICE NOT FOUND: please check if you have turned on the Bluetooth function on your devices, or please kindly try to restart your phone, the name of this earphone would be I7;3.NOT CHARGING: please kindly check if you are charging correctly, if the earphone is completely out of power, it might take longer to be fully charged;4. VOLUME CONTROL: consider it's so small size, you need to adjust the volume on your smart phone, there is only one key button on the earphone, for power on/off/answer or reject phone calls.Package Include:1*Single right ear1*User Manual1*Charging Cable
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