Product specificatons 1 .Bluetooth version: V4.1 2 . Working range: up to 10 meters on open air 3 .Frequency: 2.4G 4 .Playing time: 4 hours 5 .Standby time: 100 hours 6 .Reception level of sensitivity: 7 .Rechargeable battery: 60 mAh 8 .Compatible with Apple iPhone 6/6S/7, ipad, notebook, Samsung Android, etc. 9 : size: 25MM*15MM*35mm Common 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*One earbud 1*User Manual 1*Charging Cable
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