EDGE RT2 1-DOG UNITThe EDGE RT2 (Retriever Trainer) is built for real retriever workwhere timing, distance, and quick decisions matter. It features a 12% slimmer, no look transmitter with a rubber grip, quick access side buttons, and a 10 level selector dial so you can adjust without taking your eyes off your dog. Low, Medium, and High Combo Boost control lets you jump levels instantly when a situation escalates, while the 1. 2 mile range and Performance Width