The DT Systems Micro iDT is a compact and lightweight e-collar that offers simple controls, but advanced features so that this unit can grow with your dog’s training needs. The IDT Plus features 16 levels of our Gentle Touch Stimulation as well as our Vibration mode and can expand to a 2-dog or 3-dog system with additional collars. The rugged Waterproof micro-sized collar fits small to large dogs and the compact remote fits in the palm of your hand.  Compact training freedom at your fingertips with the DT Systems Micro iDT.