Dog Training Collar with Remote System - DT Systems Micro-iDT Plus e Collar - Lightweight Transmitter - Waterproof Collar - Rechargeable - 900 Yard (1/2 Mile) Range - Value Bundle The DT Systems Micro-iDT Plus is bundled with a Free Car Charger and an eOutletDeals Collapsible Pet Water/Food Travel Bowl. Fits small to large dogs.Expandable to 2-dog or 3-dog system with Add-On collars. 16 Levels of Intensity adjusted from the Transmitter. Digital Technology to Maximize Power. Weatherproof Transmitters with No-Slip/Soft-Grip rubber coating. Rechargeable Ni-MH Battery System in the collar.