A few simple buttons make it easy for you to adjust volume, previous/next song, fast forward, random play, connect Bluetooth.
You can download from a computer without the need to converting to mp3 format. 【High Compatibility & Easy to use】 Supports Apple iTunes music (m4a) and all other MP3, WMA, FLAC, APE formats.❤ Selecting one suitable size of 3 layers earplugs from the comes accessories, to resistant water leaking into ears and also isolate noise outside, focus on your swimming and swimming faster! The comes audio extension cable for your more sports or flexible applications.
If use mobile phone charger may damage the battery of the device. Kindly Note: Please charge by computer USB port or use 5V/500mA charger.