AGPtEK S05 8 GB Waterproof MP3 Player, Water Resistant Headphones,Wearable for Swimming Surfing Running, Blue 100% Waterproof: Marine Grade water IP-X8, under water 3 M?Submergible Headphones& Waterproof mp3 player &Swimming Earbuds High Quality Sound: Clear Stereo and Clear Bass deliver deeper, richer sound quality.support MP3/WMA/WAV/ape/Flac/OGG formats Ideal for sports and active lifestyles:Wearable and lightweight,Designed for Swimming, Running, Diving, GYM, Outwork, Winter Sports 18 - 22 hours of playback when fully charged:depends on the level of volume Built-in 8GB memory,Easy to add music, the Operation is simple and convenient