muti-function ear earphone highway - topspeaker.info
2021-9-9u2002·u2002(1).TWS mode (Due-ear)Press and hold the multi-function key on either earphone for3 seconds. Release when the red indicator light is on with a voice prompt:'POWER OFF' (2).Independent use mode (Single Ear, L or R)Press and hold the multi-function key on the used earphone for 3 seconds. Get Price
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