(Low to medium power) The Surestim units have a pager feature in the handheld transmitter acknowledging that you have fully engaged the transmitter button. This positive feeback vibration feature is especially valuable when wearing gloves during cold weather training and hunting. The 7000M is identical to its big brother the 7100H but is designed for smaller breeds or dogs that do not need a high output. Surestim 7002M: low to medium power for dogs over 15 lbs. Precise stimulation level (0-127); Reduced receiver/collar designed for smaller dogs; 1/2 mile range; Nick, Constant and non-stimulating pager/vibration; Surestim positive vibration feature in transmitter; Rechargeable Ni-MH 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. Type: Remote Trainers Breed Size: Small Breed