This usb powered speaker will make you take notice! It comes with USB charging and built in FM Radio! The cube speaker also comes with a RCA input jack, Digital volume control and a LED indicator.This FM bluetooth speaker will bring years of listening enjoyment. 1. Power(RMS): 45W+15W*5 2. Driver units: 6.5" subwoofer+3"*5 3. USB/SD solt 4. Digital FM radio 5. Full-function remote control 6. LED digital display 7. Subwoofer size: W210*D360*H395(mm) 8. Satellite size: W120*D80*H420(mm) 9. Package size: W410*D410*H440mm 10. 40' HQ qty: 946 sets