Portable trolley speaker 12" 100W LED light Bluetooth SD/USB/Radio Characteristics RMS Power: 40W Peak power: 100W Woofer size: 12" Rechargeable battery SNR: 85dB RGB LED lighting, activated via a special switch LED display  Handle and wheels for easy transportation Frequency response: 45Hz - 18KHz Input voltage: DC 9V (power supply included) Equipped with stand insert Audio inputs USB SD card 3.5mm audio jack 6.35mm audio jack (for microphones and other devices) Dimensions Height: 55cm Back width: 20cm Front width: 35cm Depth: 28cm Handle height when removed: 31cm