Expandable to 2-dog or 3-dog system with Add-On collars 900 Yard (1/2 mile) Range 16 intensity levels of Nick and Continuous stimulations adjusted from the Transmitter Positive Vibration for a “no shock” alternative training method Digital Technology to Maximize Power MAXX-Range™ Internal Collar Antenna System Extra mild Gentle Touch™ Stimulation System

Lightweight, Compact Collars and Transmitters Fits small to large dogs–collar adjusts from 6″ to 22″ Built in Magnetic ON/OFF system. Rechargeable and Completely Waterproof Collars Ni-MH Rechargeable battery included in Collar Weatherproof Transmitters with No-Slip/Soft-Grip rubber coating