

Easy to install: 1. Choose the right earbud head, note: there should be no gap between the earbud and the ear, otherwise there will be a whistling sound.

Install the battery: Please install the battery according to the requirements on the picture

Adjust the sound: 1. You can first turn down the volume to test, if you think the volume is too small and then slowly increase, remember: can not directly turn to the maximum volume use.



Easy to install: 1. Choose the right earbud head, note: there should be no gap between the earbud and the ear, otherwise there will be a whistling sound.

Install the battery: Please install the battery according to the requirements on the picture

Adjust the sound: 1. You can first turn down the volume to test, if you think the volume is too small and then slowly increase, remember: can not directly turn to the maximum volume use.
















