•CD/USB/DRP (Digital Record and PlaybackSD Memory)•CD+USB DRP 9SD Memory) Portable FM Tuner•CD Long-Life Function•CD Copy Function (CD→ USB or DRP)•USB Hosting Function (USB↔DRP)•FM 30 MemoriesFrequency Response: 20Hz ~ 20kHz 1.5dB THD + N (with a filter): 0.08% (Less than 0.1%) S/N Ratio (with a filter): 80dB (More than 75dB) Output Signal Level: 1.2V ~ 0.2V Capacity of inner memory: 2GByte Tuner Range of receipt frequency: FM: 87.5 ~ 108MHz Antenna input: 75 Unbalanced Sensitivity for practical use: 2µV 40Memory Operating temperature: -10 ~+40 Power Source: 17v DC 22v Dimensions: 184(W) x 55(H) x 180(D) mm Weight (Net): 0.95kg Weight (Gross): 1.65kg .