features:<br />1. 100%  and high quality.<br />2. waterproof mp3 player is tailored for swimmers and water sports enthusiasts<br />3. the earphone attaches to the player via a special screw-in jack  to keep the device water-tight<br />4. the waterproof earphone employs a special non-woven fabric membrane to keep  the speaker vibration plate dry while<br />5. maintaining a high quality sound output<br />6. the new stylish headphones perfectly match the ergonomic principle <br />7. with fm radio function<br />8. can be widely approachable for all sporting activities  under different environments<br />9. both the waterproof earphone and the waterproof 4gb mp3 player are tested to  comply with international water resistant standard<br /><br />specifications:<br />1. storage: 4gb<br />2. waterproof rating: ipx8<br />3. maximum underwater depth: 3 meters<br />4. control type: button<br />5. media supported files: mp3， wma<br />6. fm: 87mhz - 108mhz<br />7. interface: usb 2.0<br />8. power supply: built-in 3.7v 130mah lithium battery<br />9. playback time: 8 - 10 hours<br />10. charge time: approx. 2 hours<br />11. product size (l x w x h): 5.6 x 3.2 x 1.7 cm<br /><br />package included:<br />1 x waterproof mp3 player<br />1 x special data lines  (23.5cm)<br />1 x special waterproof headphones (line length: 68cm)<br />1 x waterproof arm band (28cm flexible and adjustable)<br />1 x wiping cloth （13*13cm )<br />3 x ear buds<br />1 x english user manual