Lightweight waterproof collar unit (Dog can wear while wet) 9 fully adjustable levels of Gentle Touch static stimulation Collar strap features heavy duty buckle and adjusts from approximately 8″ to 25″ to fit most dogs necks Specially designed vibration sensor picks up vocal cord vibrations and not other loud noises

Runs off a 9v battery so no worries about re-charging Long lasting with blinking low battery indicator Easily adjustable buckle type collar strap adjusts from 9″ to 22″ 1/2 second corrective stimulation (so it will not overstimulate)