Massive 2.1 inch Hi-Fi Bluetooth speaker with 4 inch Subwoofer and FM Radio. Carry handle for easy portability. Very clear sound and heavy bass. A2DP Bluetooth. Wirelessly stream music from any Bluetooth enabled device such as your smartphone, notebook, tablet or plug in included 3.5 audio jack into the speaker. Easy charging with included USB cable. Enjoy music up to 4 hours (at medium volume) and wirelessly up to 10 metres. User guide included. Features Micro SD card reader (4GB card available at extra cost).