Studiologic Sledge 61-Key 8-Voice Virtual Analog Synthesizer with Waldorf Synth Engine Includes famed Waldorf modeling technology 3 Oscillators per voice; stores up to 256 sounds 2 fast LFOs per voice, each with adjustable speed and depth 32 Pots, 3 rotary switches, rotary encoder with push function Backlit LCD, pitch and mod wheel, USB connector for MIDI in/out, built-in power supply