ISOUND ISOUND-6262 Rechargeable BT4000 Bluetooth(R) Boom Box (Black)•Wirelessly streams music via Bluetooth(R);• FM radio with 20 presets;• Built-in rechargeable battery ;• USB charging port;• LCD;• Active independent treble & bass controls;• Smartphone/tablet display tray;• Aux input for non-Bluetooth(R) devices;• Up to 5 hours continuous playback on a single charge;• USB/SD(TM) Card slots for MP3 playback;• Twin full-range drivers with powerful bass response;• Also works as a Bluetooth(R) receiver for a wired audio system via headphone jack;• Bluetooth(R) V3.0;• Black