Concertmate-380 (420-4018) Specifications Faxback Doc. # 8518 Number of Keys...........................................................32 Polyphonic Sound.....................................................2-note Preset Tones.............................................................25 Tone Edit Variation Sounds..............................................100 (25 preset tones x 4 variations) Patterns.................................................................24 Demonstration Tunes.......................................................5 Built-In Speaker Size.........................................29/16 Inch (65 mm) Diameter Output..............................................................1.0W Terminals DC7.5V................................................Input Voltage: 7.5V PHONES/OUTPUT............................................1/8 Inch (3.5mm) Output Impedance.................................................120 Ohms Output Voltage.............................................1.6V (RMS) MAX Power Sources AC............................................120V, 60Hz, with AC Adapter DC.........................................................4 AA Batteries Vehicle Battery...........................................with DC Adapter Power Consumption..........................0.6W (when powered by batteries) 0.8W (when powered by an AC Adapter) Dimensions..............................15/8 x 151/16 x 415/16 Inches (HWD) Weight..........................................1.1 lbs including Batteries (RLR-10/22/93)