Product Information: This is the Behringer SYSTEM 100 140 DUAL ENVELOPE/LFO. An authentic reproduction of the original System 100M circuitry from the 80s that can fit in a standard Eurorack case. Mix the 140 DUAL ENVELOPE/LFO in with your existing rig or start your modular synth journey from here. Either way, youre sure to have a lot of fun. Product Features: Warranty period: Three (3) Years Legendary Dual Envelope/LFO module from the 80's Authentic reproduction of original "System 100M" circuitry 2 independent ADSR envelope generators controllable via external gate or manual triggering LFO features 5 waveforms: sine, triangle, square, ramp and saw tooth Frequency, delay and range controls plus external sync input for maximum LFO flexibility External trigger switch lets you phase lock the LFO to your keyboard playing 2 LFO outputs can be switched between x1/10 or x1 level 3 envelope outputs (2 normal, 1 inverted) 15 controls and switches give you real-time access to all important parameters Eurorack specs: 16 HP, 50 mA +12 V, 50 mA -12 V For more information and specifications, please refer to the manufacturers website