Best for Swimming, Running, Diving, GYM, Outwork, Winter Sports</br>MP3 Digital Audio Format: MP3,WMA, FM Radio with Auto Station Scanning 100% waterproof, Marine Grade water IP-X8, under water 3 M</br>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.</br>Submergible Headphones& Waterproof mp3 player，Both the waterproof mp3 player or earphones can stay submerged under water for more than 24 hours without sustaining damage.</br>Package include:1* MP3 Player, 2* Earphones, 6* Changeable Earbud Tips, 2* Hooks, 1* USB Cable</br></br>Product Description</br></br>Features: Submergible Headphones + Waterproof mp3 player MP3 Digital Audio file compatibility Add Music: simple Drag & Drop file Management FM Radio with Auto Station Scanning Built in Rechargeable Battery,12Hour Life Bulit in 4GB Memory Impressive Bass Response Simple Touch Button Controls Convenient Clip-On Design Mac & PC compatible Technical Specs: Marine Grade Water Rating: IPX-8 Construction Material: Engineered ABS Digital Audio file support: MP3, WMA Holds up to 1,000Audio Files Average Charge Time: 1.5Hours Speaker Rate Power: 5mW Frequency Response: 20Hz -20kHz S/N Ratio:>68dB USB Support: 2.0 Dimensions:2.5"x1.1"x0.5" What's in the Box: MP3 Controller Unit Waterproof Headphones 6 pairs of Changeable Earbud Tips USB Charging/Connection Cable</br><br/>http://www.amazon.com/gp/product/B01G1OE5JA