Piple Wireless Bluetooth Speaker With FM 20W Power Bank Function Built-in 4400mAh Battery,Boom Premium Wireless Stereo HIGH QUALITY CRYSTAL CLEAR SOUND distinct mids and highs from our two precision acoustic drivers delivering 20 Watts of excellent stereo sound and enhanced bass from our proprietary passive Subwoofer design ------ THE S5: THE NEXT GENERATION OF ULTRA PORTABLE SPEAKER DELIVERS THE SOUND & FEATURES THAT DISTANCE IT FROM THE COMPETITION. POWER BANK FUNCTION:Built-in 4400mAh Rechargeable Battery for up to about 15-20 hours of playtime.take it for outdoor Party with built-in rechargeable battery.What'more,it can also used as power bank to charger your cell phones. BUILT-IN MIC for handsfree speakerphone for use with smartphones and iPhones; connect in seconds to Bluetooth devices including: iPhone, iPad, iPod, Samsung, Kindle, Smartphones, Tablets; play audio from laptops, PCs, and non-Bluetooth devices using included 3.5mm audio cable/AUX-IN jack; includes Micro-USB cable for charging ELEGANT PORTABLE DESIGN : Our portable Bluetooth speakers have versatile portable design with aluminum out case and sturdy body, so you can place it in a variety of locations and can easily take it from one place to the next. GUARANTEE - Piple S5 gives you 12-months guarantee. We will replace your product with a new one for any defect or other non-satisfaction, or full refund will be issued for you. Your satisfaction is our Top Priority!