PetSafe PetSafe Deluxe Little Dog Remote Trainer #729849102446For pets weighing less than 40lbs. Light weight receiver (2.4oz). Hand-held unit gives you control in encouraging or modifying your pets behavior. Effective within a 100 yard range. 10 levels of stimulation can be changed "on the fly" from the hand held transmitter. Water proof receiver, effective indoors or outdoors. - Training