DT Systems 190 DT No Bark

190 DT No Bark Trainer--This is our medium size NO BARK collar. Features waterproof collar unit 9 fully adjustable levels of Gentle Touch static stimulation 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 8" to 25" 1/2 second corrective stimulation (so it will not overstimulate)