For pets over 40 pounds 10 levels of stimulation plus tone-only button 100 yard range Waterproof Receiver, water resistant Transmitter Receiver uses two (2) 3-volt CR2032 batteries; Transmitter uses a 9-volt alkaline battery (both included) Manual included Transmitter Specs: Height: 6" Width: 1.5" Depth: 1" Weight: 3.5 oz. Frequency: 303.825 MHz Correction dial on face Red light on face Pop off battery cover and belt clip on back Receiver Collar Specs: Height: 1" Width: 2.5" Depth: 1.25" Weight: 3.6 oz. Antenna running through strap Light on side Power push button Red Light serves as low battery indicator Battery life of up to 30 days