The delta xc remote dog training system from garmin, with proven tri-tronics technology, gives serious dog trainers more control with more simplicity.The handheld controller features intuitive, 3-button design with improved false-correction prevention (dog select lock) and easy-to-read lcd display.The compact dog device features changeable contact points (long and short).Together the system gives you 18 levels of continuous stimulation and 18 levels of momentary stimulation plus tone and vibration, in 3 correction configurations, and the ability to set the device to train 1, 2 or 3 dogs from up to 3/4 mile away.Function: Dog TrainerBattery: Rechargeable Lithium IonProofs: Water ResistantColor: BlackCompatible With: Up to 3 Dogs