Gift Pro Waterproof Mp3 Music Player with FM Radio, Clip Design for Swimming, Running, Diving, Gym, Outwork, Winter Sports, 4GB, Green Best for Swimming, Running, Diving, GYM, Outwork, Winter Sports MP3 Digital Audio Format: MP3,WMA, FM Radio with Auto Station Scanning 100% waterproof, Marine Grade water IP-X8, under water 3 M Clip design suitable for Swimming, Gym, running, Driving and Winter sports Built in 4GB Memory, Built in Rechargeable Battery,12Hour Life. Before use, please full charge via Usb cable. *Warriing: Charge your MP3 using USB cable connect computer or Using AC holder ( Ourt put: 5V/500mA). Not use a big AC holder(Over 5v/1A or 5V/2A) to charge, it will make the player under Fake full charge status to shorten playing time. Submergible Headphones& Waterproof mp3 playerBoth the waterproof mp3 player or earphones can stay submerged under water for more than 24 hours without sustaining damage. Package include:1* MP3 Player, 1* Earphone, 4* Changeable Earbud Tips, 1* USB Cable