Enjoy Your Music Through Dual High-Performance Loudspeaker. Ensures Enhanced Clarity and Fidelity. USB-Powered, Energy-Saving and Environmentally-Friendly, Safe and Reliable. Exquisite Design. Lightweight And Portable, Convenient to Carry. 2.1 CHANNEL MULTIMEDIA BLUETOOTH SPEAKER BLUETOOTH OPERATION RANGE WITHIN 10 METERS USB & SD SLOT FM RADIO FUNCTION LED DISPLAY READ MP3 FORMAT POWERFUL AMPLIFIER CIRCUIT HI-FI SURROUND SOUND / SUPER SUB-WOOFER INPUT CONTROL: VOL+- / CH+- / PLAY / PAUSE FREQUENCY RESPONSE: 40Hz -150Hz, 150Hz – 20KHz FM FREQUENCY: 87-108MHZ FULL FUNCTION REMOTE CONTROL VOLTAGE: 220 – 240V 50/60Hz POWER CONSUMPTION: 34W.