SHANGRI-LA Honeycomb Portable Wireless Bluetooth CSR 4.0 Stereo Systems Speaker with NFC, Powered Subwoofer, Built-in 1800mAh Rechargeable Battery, Mic, Audio Jack, Micro USB Slot, Support TF Card - Super Bass High-Def Sound Quality with up to 15 Hour Playtime for all Bluetooth Devices We just focus on sound quality! Feel the thumping beat! Incredible crystal clear strong bass and two passive sub woofers, perfect for Iphone, Samsung, Apple, Ipad, Ipad Air, Google Nexus and Many Others Bluetooth Devices - for music, games and gatherings With Powered Subwoofer, Mic, Audio Jack, Micro USB Slot, Support TF Card. A CSR 4.0 Bluetooth chipset, dual 3-watt precision-tuned drivers, multi-band compressors and the enhanced bass resonator offer class-leading performance pumping out super bass, clear mids and vibrant highs Honeycomb style designed, abstract and attractive. Easily fit in your backpack, purse, gym bag, or to even just be tossed into your car-C crafted to be taken everywhere Packed with an 10 to 15-hour built-in 1800 mAh rechargeable battery that gives you non-stop music from dusk till dawn. Conveniently recharge on the go with the included micro USB cable NFC technology - Tap-to-pair with NFC technology for easy and instant connection (If your bluetooth audio device has NFC function)