Sacred Sound Geometry: A custom designed loop based sound generator/synthesiser. 10 models are available, with sounds ranging from ambient arpeggios, tranquil soundscapes and sweeping drones to dark, horror inspired backdrops, dissonant glitched voices and throbbing mechanical grooves. Features: power on/off switch indicator led loop length control pitch control mini jack output powered by 1 x 2032 3v battery (not included)excellent, long battery life. Black pcb design measuring 5x5cm