Size The size of this Bluetooth Headset is derived from the test date of our engineers which it will be suitable with most persons' ears. But we are not sure it would be suitable for you completely, and we will be much appreciate if you contact us when you find the earphone is not fit your ears. Language Change If you change the language by accident, press down the button for 3 seconds, the language mode could be changed freely from English to Chinese or Chinese to English. Choose the one you want. Package Included 1 x Earphone for Right Ear 1 x Micro USB Cable 1 x Instruction Warranty Guarantee 1 Year Warranty Guarantee
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