Multi purpose e-collar, designed for advanced level Pet training; Competition training, police k-9 work or any Type of hunting where a 3/4 mile range is needed; 2 hour rapid charge batteries; Fully waterproof receiver & transmitter; Sports an illuminated LCD screen to see correct setting levels; Precise stimulation level (0-27), 3/4 mile range; Nick, Constant and non-stimulation. ating pager/vibrator. ation,;2-hour rapid change lithium polymer batteries,;Fully waterproof collar/receiver and transmitter,;LCD screen displays exact level of stimulation even in dark or low light conditions, Three bar battery life indicator