The 150 RING MOD/NOISE/S&H/LFO comes with a ring modulator to create some metallic and bell-like sounds that can be applied to any signal such as a sine wave or a signal from an LFO via the EXT SIG X/NOISE and EXT SIG Y/LFO jacks and out the RING MOD output. The LFO features 5 waveforms including sine, triangle square, ramp and sawtooth. Parameters can be further adjusted by the FREQ and DELAY sliders.