This item is a waterproof MP3 player & FM Radio designed for swimming, diving and other underwater sports.</br>Small all-in-one wearable FM player comfortable & fashionable, Bands from 76MHz-108MHz, automatically search workable channels. 8GB memory to store thousands of mp3 player,Can support most of the audio format.</br>USB rechargeable battery, it can work for 6-8 hours when fully charged. USB plug built-in desing, user friendly Inserted directly into a USB port for charging.</br>Compliant with international IPX8 water resistance standard.</br>Perfect for sports like swimming, diving, running, surfing, climbing etc.</br></br>Product Description</br></br>Specifications: <br> Color: Red,Black,Blue,White,Black+Blue<br> Memory:8GB<br> PC interface:USB 2.0<br> Power: the built-in 3.7V lithium polymer rechargeable battery.<br> Up to 6-8 hours of playback time<br> 87.5-108.5MHZ frequency range(self selection)<br> Music Format: MP3, WMA,VBR,AAC files<br> Bit rate: 8-320Kbps<br> Temperature Rating: 0 - 50degrees Celsius<br> Signal to noise rati:>85dB<br> Output of earphones: 2 x 4mW<br> Button Controls: Forward, Back, Play/Pause<br> System is to support windows 7/8/10/ ME/2000XP/Vista<br> Package weight: 136g / 4.8oz<br><br> Package includes: <br> 1 x Waterproof 4GB mp3 built-in earphone<br> 2 x Earplug<br> 1 x USB Cable<br> 1 x User manual<br></br><br/>http://www.amazon.com/gp/product/B01I9EISK2