Color Changing boombox offers a rechargeable speaker with lighting effects. Bluetooth wirelessly streams audio up to 100ft. Lights change color with 7 different modes. Rechargeable battery lasts up to 34 hours on a single charge. Also enjoy audio from radio USB files Auxiliary input and TF card. Wireless Stereo - connect a 2nd speaker for stereo sound (NOT included). Carry strap supports easy portability. Includes charging cable. Dimensions: 8.66"L x 3.78"W x 3.86"H.