Based off of the circuitry of the Demeter Tremulator comes the Mooer Trelicopter Tremolo, made specifically at musician-friendly prices. In classic Mooer style, the Trelicopter comes in an ultra-compact chassis and offers optical tremolo at a huge range of speed and depths, so you can make choppy, aggressive trem or make it a little smoother for wave-like pulses. Plus, you can color your trem with the Bias knob, so you don't just get pulses - you also control your tone.