Aetertek At-219 LCD Display & Auto Anti Bark Function 600yard Remote Control Dog Training Collar for Small Dogs,Shock Vibration Beep Correction Methods 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. LCD display ,Rechargeable transmitter and receiver. Auto anti bark function , 1 year warranty