Summary of F&D A111F
4" full range driver for satellites speaker, 4" bass driver for subwoofer. Heavy duty metal grill for satellite. Plug & play USB/SD card reader. USB reader supporting MP3/WMA dual formats decoding. Play/Pause, Next, Previous three buttons for USB/SD reader control. Built in AVR (Automatic Voltage Regulator) for wide main operating voltage range. High efficient energy saving design for Low Power Consumption. Side panel controls for volume and bass. Green LED power on indicator. Wooden cabinet delivers strong and low distortion bass.