DESCRIPTION: This is a 100% IPX8 waterproof MP3 player. 3 meters underwater, IPX8 standard. Perfect for swimming/running/surfing/sports. It is specially designed for swimmers, surfers and other enthusiasts. The shell material is used for aircraft, and it can also be corrosion resistant to seawater. The design concept is to create a portable music device that can be used by swimmers and other water sports enthusiasts while minimizing the impact on their athletic performance. USB2.0 High speed Audio format: MP3, WMA Built-in rechargeable battery: 8 hours continuous playback time: Win2000/WinMe/WinXP/Vista and OS8.6+ and Linux 2.4.0 Storage temperature: 10C~+50C Operating temperature: -5C~+40C Tips: 1. Wipe the MP3 player after swimming to make it more durable; 2. Turn off the MP3 player before unplugging the headphones; 3. Keep the headphone jack dry before charging or transferring data. Memory: 8 GB Material: plastic Color: black Package content: 1 x Waterproof MP3 player 1 x Pair of waterproof headphones 1 x Data cable 1 x Cleaning cloth Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.