Miniature electronic device intended for potential vicious dog and animal protection. May discourage human encounters. Also used for field research work. Complex sonic shock waves are internally adjustable for maximizing on target subject. Operating frequency is 18-19kHz (right at the edge of human hearing). Sweep mode intensifies effect. Effective range of up to 25 feet.
|These are paper plans, requiring parts and assembly (also available as downloadable plans for roughly half the price).|