(Low to high power) The 3500NCP labeled the Super-X because of the X-tra features, X-ceptional range and is designed for X-treme training situations. Precise stimulation level (0-127); 1 mile range; Nick, constant and non-stimulating pager/vibration; 2-hour rapid charge Lithium Polymer batteries; Fully waterproof collar/receiver and transmitter; LCD screen displays exact level of stimulation even in dark or low light conditions; Regular/mild setting toggle switch, gives you the option to adjust the range of stimulation levels for your dogs sensitivity; Three bar battery life indicator; Carrying case. Type: Remote Trainers