Asunflower&reg; 8W Bluetooth Stereo Speaker with Micro SD/FM with NFC for MP3 Players, Smart Phones, Pads, Laptops and Many Other Devices (Black) Connect wireless with your cellphones, tablets or computers via Bluetooth 4.0 Receive hands free phone call while playing music by pressing "play" button Tune to your favorite FM radios right away on this versatile speaker Micro-SD Slot, AC or USB Charging (Built-in Large Capacity Lithium Battery Charge for up to 12 hours long playback time), NFC Feature Two 4w ouput speakers (totally 8w) deliver superior low bass/treble performance, as well as crisp, clean, rich and loud sound for your listening pleasure