Features:

• 4" full range driver for satellites and 6.5" bass driver for subwoofer
• Heavy duty metal grill design
• Plug & play USB/SD card reader
• USB/SD 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

A521

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