Flex's innovative memory wire can form the headphones around your ear for the perfect fit</br>Great sounnd under/out water, clear Stereo and Clear Bass deliver deeper, richer sound quality. The Flexible headphones fit your ears firmly and stay well when you doing exercise. 100% Waterproof with gold plated stereo jack to prevent corrosion.</br>support MP3/WMA/WAVformats; Support Shuffle and Sequence play.</br>Built in 8GB Memory, Built in Rechargeable Battery,12Hour Life.</br>Small size,lightweight(Dimensions: 36x51x19mm, weight: 20.2g); Clip design suitable for Swimming, Gym, running, Driving and Winter sports. Fashion blister package is the best one for gift.</br></br>Product Description</br></br><b>Features:</b><br>Submergible Headphones + Waterproof mp3 player<br>MP3 Digital Audio file compatibility<br>Add Music: simple Drag & Drop file Management<br>Built in Rechargeable Battery,12Hour Life<br>Bulit in 8GB Memory<br>Impressive Bass Response<br>Simple Touch Button Controls<br>Convenient Clip-On Design<br>Mac & PC compatible<br> <b><br>Technical Specs:</b><br>Marine Grade Water Rating: IPX-8<br>Construction Material: Engineered ABS<br>Digital Audio file support: MP3, WMA<br>Holds up to 2,000Audio Files<br>Average Charge Time: 1.5Hours<br>Speaker Rate Power: 5mW<br>Frequency Response: 20Hz -20kHz<br>Signal Distortion:<0.1%<br> S/N Ratio:>68dB<br>USB Support: 2.0<br>Dimensions: 36x51x19mm, weight: 20.2g<br><br><b> What's in the Box:</b><br>MP3 Controller Unit<br>Waterproof Headphones<br>2 pairs of Changeable Earbud Tips<br>USB Charging/Connection Cable</br><br/>http://www.amazon.com/gp/product/B01NCTRM7C