Sound Generation Method: Analog Modeling Synthesis System Synthesizer Program: Multi Timbral=2 (max, Normal/Dual Mode) Voices: 4 voices Sound Source: 2 Oscillator + Noise Generator, Multi Mode Filter (-24dB/oct LPF, -12dB/oct LPF/BPF/HPF), EG x2, LFO x2, Virtual Patch x4 Vocoder Program: Voices = 4 voices Sound Source: 1 Oscillator + Noise Generator, EGx 2, LFO x2, 8 Channels vocoder, level and pan of each channel can be edited, Format Shift function Programs: 128 programs Effects: Modulation effects (3 types), Delay (3 types), Equalizer Arpeggiator: 6 types Keyboard: 37 Keys (mini-keyboard, velocity sensitive) Inputs: AUDIO IN 1, and 2 Level switch: LINE/MIC, [AUDIO IN 1, 2 (LINE)], [AUDIO IN 2 (MIC)] Outputs: L/MONO, R and Headphones Control Inputs: Assignable Pedal, Assignable Switch MIDI:IN, OUT and THRU Display: 3 characters x1 line with 8 segment LED Power Supply: DC 9 V (AC adapter), or six AA alkaline batteries (sold separately) Power Consumption: 6.4 Watt maximum Dimensions: 20.63"(W) x 9.02"(D) x 2.8"(H) 524mm(W) x 229mm(D) x 71mm(H) Weight:4.85 lbs.2.2 kg Accessories:AC adapter (DC 9 V, 600 mA), Condenser Microphone Specifications subject to change without notice