Description: Please check it carefully before buy it? How to use it: When you receive it. please Use a New Pair Batteries? Hold on the host Power key for 7 seconds, then the host light is on,you could use it. Repeated operation. if dont? please contact us first time? if you use it for first time, we suggest you could use your finger to sense it, as it is a low-frequency products. Anyway if you have any questions,please contact us first time? thank you
Description: Please check it carefully before buy it? How to use it: When you receive it. please Use a New Pair Batteries? Hold on the host Power key for 7 seconds, then the host light is on,you could use it. Repeated operat...
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