URPOWER Bluetooth Speakers IPX7 Waterproof Portable Wireless Bluetooth Speaker Outdoor 4.0 with 20W Dual Driver， Stereo Pairing， More Bass for iPhone Android Echo Dot， Durable for Beach Shower Sports<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>SUPER WATERPROOF &amp; DUSTPROOF: IPX7 Waterproof and floating design， Can be immerged in water. Waterproof， dustproof， shockproof， rugged design for harsh environment. Bring your music out on the water... without a phone!</li><li>STEREO PAIRING:  High quality crystal clear and loud stereo sound. If you have two UPRPOWER F4 speaker， connect them together to create left and right channels to enjoy a full-range stereo sound with impressive volum.</li><li>ULTRAL-LONG WORKING TIME: Rechargeable 2500mAh lithium battery provides up to 15 hours of continuous music when fully charged. Charging time: approx. 4 hours.</li><li>ADVANCED TECHNOLOGY: Bluetooth Smart 4.0 technology. Built-in microphone for hands-free speakerphone calls， 3.5mm auxiliary input jack lets you connect any non-Bluetooth device (MP3 player， CD player， etc.)</li><li>WHAT YOU GET: URPOWER waterproof bluetooth speaker， USB charging cable， 3.5mm audio cable， manual， float accessary， our 12-month warranty and friendly customer service.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51LZDN8N5AL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51RoPVL2fJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51e-hv2XYLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51wIFjCSFmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61KaWdpBXRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51OJit73QxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51arNX28mtL.jpg" noproxy>