Description: Stylish design with fluorescent holder to strap onto swimmer goggles. Rechargeable battery, it can work for 8 hours when fully charged. Compliant with international IP*8 water resistance standard. Compliant with high speed USB 2.0 specification Compliant with Windows 98SE/ME/2000/XP/Vista, Mac OS 8.6+ and Linux 2.4.0 Memory: 2GB/4GB/8GB Music Format: MP3, WMA Bit rate: 32-320Kbps Temperature Rating: 0 - 50 degree Output of earphones: 2 x 4mW Button Controls: Forward, Back, Play/Pause Color: Yellow Package: 1 x mp3 player 1 x earphone 1 x straps 1 x USB cable 1 x retail box