A. power amplifier B. USB/SD decoder C. FM radio D. dual 14-brand EQ (with LED light) Power amplifier with USB/SD, FM, EQ1. Power (RMS): 85W*2 (4Ω)2. USB/SD3. FM radio4. two MIC inputs, digital echo 5. dual 14-brand EQ (with LED light)6. full-function protection circuit7. intelligent cooling system 8. package size: 480*385*195mm power amplifier with USB/SD, FM, EQ