The Dogtra iQ MINI delivers all the essential features of a remote trainer in a petite form specific for smaller dogs. It offers the lightest and smallest receiver, weighing at 1.3 ounces, with ergonomically designed plastic contact points, making it ideal for dogs as small as 7 pounds. While compact, it is packed with features such as a 400-yard range, 100 Nick/Constant stimulation levels, and a Pager vibration. Collar is 3/4 x 28 inches For dogs as small at 7 lbs 2-Hour Rapid Charge Batteries Receiver collar weighs 13 ounces and is fully waterproof Compatible with IQ-PLUS and IQ-MINI