State-of-the-art RedHead RH2 1200 Series training systems have been completely redesigned to give you more of what you need out in the field. With 16 levels of stimulation, you'll have the ability to train sensitive dogs with tickle-like Gentle Touch Stimulation (GTS) in the lower range, or stubborn dogs at the higher levels. The rechargeable, ergonomic transmitter has a rubberized textured finish and easy-to-use controls, and fits nicely in your hand; the rechargeable, waterproof collar is built extra-sleek and features our MAXX-Range Internal FM Antenna System running 360 inside the entire collar, to pull in clear signals from any direction. Plus, you can expand the system for training 2 or 3 dogs, depending on the model, with our add-on system-based collars (sold separately). Includes rechargable NiMH battery in transmitter and collar. Size: One size fits most. Maximum range: 1200 yds. State-of-the-art training systems 16 levels of stimulation Train sensitive dogs with tickle-like Gentle Touch Stimulation (GTS) in the lower range Train stubborn dogs at the higher levels Rechargeable, ergonomic transmitter Transmitter fits nicely in your hand Rechargeable, waterproof collar is built extra-sleek Collar features our MAXX-Range Internal FM Antenna System running 360 inside the entire collar Can expand the system for training 2 or 3 dogs Models include: 1200: Full range of Nick and Continuous stimulation. 1220V: Vibration-equipped model. Vibration can be used solo or simultaneously with stimulation. 1250B: Beeper model is audible at 450 yards. Features built-in Locate, Run & Point, and Point Only functions.