Aetertek AT-219s LCD Display Auto Anti-bark Remote Training Collar Shock Vibration Beep Tone for 2 Small Dogs Puppies And Large Pets 100% waterproof and submersible desigh Intelligent 18 levels of progressive shock corrections(both in shock time and voltage) to correct bad behaviors effectively. Latest individual design ,novel in appearance. Rechargeable transmitter and receiver. Can be used manually as a remote dog trainer or as an automatic anti-bark/bark control collar