Dog Fence System Pet Containment System with 9 Adjustable Levels IPX8 Waterproof Rechargeable Receiver Underground Fence for Small Medium Large DogOur electronic fencing system creates an effective signal field to deter our dogs from the designated area, which greatly ensures our pets safety. The transmitter features multiple dogs support, 1. 77 acre signal field range and 9 adjustable levels. Once you start up the system, the receiver will automatically send the preset correction signals as your dog try to cross the boundary wire. The correction siganls includes Beep+Vibration, Beep+Low Level