Persang Karaoke Bass Hunter Trolley Portable Speaker 12 inch with 2 Wireless Microphone Music System Set / FM Radio / USB / Audio Input / Rechargeable Battery Outdoor PA System  (120 W)

Ultra-low distortion amplifying circuit. Built-in MP3 encoding supporting U disk. Professional treble and bass gain controlling circuit. Built-in battery for outdoor activities. Features PANEL/REAR PLATE/MP3 FUNCTION AND OPERATION: VOLUME: Adjusts sound output. MIC.VOL (Microphone Volume): Adjusts the volume of the microphone. POWER (Power Switch): power control of sound amplifier instead of the charging power. When the adaptor is connected, the battery charging is not controlled by the switch. LIGHT SW (Light Switch): set this switch to ON to turn on the LED for the woofer. AUX INPUT: connect your MP3 player here using the 1/8" input. PLAY/PAUSE: press this button to pause the signal from the USB flash drive OR micro SD card or Bluetooth inputs. FM TUNER MODE: press and hold this button to begin an automated search search for all available FM stations. All FM stations that are found will be saved to memory.