More on Amazon.com : http://www.amazon.com/gp/product/B00R74AWUK?tag=thefatkidin06-20 <br /> <br />SINOBAND? S400 Waterproof Dustproof and Shockproof Portable Stereo Power Bank Bluetooth Speaker <br /> <br />Waterproof Dustproof and Shockproof wireless Bluetooth speaker metal and silicone housing design made it anti-skid you can take it into the bathroom Also a metal hook make it more portable that you can easily carry with for sporting climbing <br />New 2 in 1 function Powerful 7000mAh built-in polymer lithium battery provides up to 20 hours of playback time a standard USB jack can be used as a power bank that you can enjoy your music the same time power your electronics <br />Bluetooth 40 and CSR chipset connects faster more stable compatible with all your Bluetooth-equipped devices and an excellent Bluetooth range about 492 feet so you can control your music in an appreciable distance such as the open-air yard <br />20 sound track audio deliver rich and comfortable listening experience Super bass and high high-fidelity audio enjoy the music at all frequency with pleasure <br />Built-in noise reduction microphone and additional speakerphone function free your hands for the phone calls
