The Dogtra 280C is a 1/2-mile range compact e-collar with all the key essentials for a dog. The 280C e-collar comes with a waterproof certified receiver and handheld transmitter precisely controlled by a Dial and LCD screen to display the exact level. The 280C Remote Training Collar is the perfect tool for basic obedience or field training, where you need a reduced size receiver for a smaller dog.