IP67 WATERPROOF IP67 means ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time.So there is no worry about damage when you bring it to pool or beach. And also it means complete protection against dust.It is a great chooice for any outdoor activity like hiking,camping,surfing and swimming. MOUNTABLE AND PROTABLE DESGIN:We provided accessories that allow you to mount it on your bicycle or hang up on your bag. 10 full hours of playback time allow you to keep the audio running without so much as a pause. FAST AND EASY PAIR:With high efficiency bulit-in Bluetooth 4.0 chips. Paring with other device will faster and quicker. It will allows you to connect two devices at the same time.Surge Blast also allows you to make, take, and put calls on hold – as easily as you would on a smartphone. Its universally compatible so you can readily connect whatever Bluetooth-enabled device you have. CRYSTAL CLEAR SOUND: Whatever you listen to is free from background noise and static, thanks to Bluetooth 4.0 technology – which means the high bass sound quality for this speaker is richer, fuller, and lounder.It will assured that is loud enough for party or outdoor use. Moveover, It also has 3.5mm AUX input port so you can connect it with any wired device. OUR PROMISE TO YOU: At Proxelle, theres no two ways about it – our goal is to make sure youre completely happy with every purchase. Thats why youre backed by our Guarantee – either you love this product, or well return every penny. Its just that simple.