YTR Battery Powered Bluetooth Speaker Boombox Subwoofers with Built in 4_inch Cylinder Speaker, SD Card Slot, Aux-In and FM Radio PORTABLE WIRELESS SPEAKER: Enjoy your music on the go, everywhere you go. The YTR portable wireless speaker delivers full, natural sound with dramatically deeper bass than you'd expect from an ultra portable Bluetooth speaker. It connects wirelessly to your smartphone, tablet or other Bluetooth device, so you can listen to your music, videos or games anytime, anywhere. SPLASHP-ROOF BLUETOOTH SPEAKER: Splash-proof means no more worrying about rain or spills. This portable Bluetooth speaker features a splash-proof fabric coating and rugged rubber housing. So you can take it out by the pool, or on a ski slope, or on an overnight camping trip. SIMPLE PAIRING: This compact speaker pairs easily with your Bluetooth-enabled device. Wireless range (up to 33') use the portable wireless speaker to stream music from an iPhone or Android smartphone, an iPad or Android tablet, an iPod Touch or even a computer or laptop. RECHARGEABLE BATTERY: The Wireless Bluetooth Speakers is powered by a built-in rechargeable Lithium battery. A fully charged battery gives you up to 4 hours of continuous playing time in most situations. An empty battery usually takes 2 to 3 hours to charge. CARRY STRAP: Portable wireless speaker comes with shoulder-strap and two carabiners that enables easy and stylish travel.