Dolphin Audio RETROBOX SP-411BT Portable Bluetooth Speaker System - Black - Battery Rechargeable - USB

Features a rechargeable battery for extended playback time Charge your gadgets on the go with the integrated USB port Appreciate the flexibility of wireless sound whether next to the SP-411BT or across the room SD card slot allows you to play your songs without the need of any other electronic gadget Wirelessly stream audio from any smartphone or tablet with Bluetooth and appreciate the fantastic sound Feel the subtlety of your music come through in sparkling detail with the SP-411BT Speaker System