![open ear air conduction headphones](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Warm Tips:
The MP3 player mode only supports MP3/FLAC/WAV formats, please transfer to MP3/FLAC/WAV formats if audio files in other format.
If the volume of headset is low after connecting your Android devices, please try to turn on "sync volume with phone" in Bluetooth setting.
If you cant find "sync volume with phone" option, simply adjust volume on your phone and headset together.
Please do not charge immediately after exercise, so as to avoid possible residual sweat in the charging port to damage the earphone circuit.
Please cleaning the headset with a soft and dry cloth.
The headset should be stored in a cool and dry place. The working temperature should be 0-45℃.