An electronic collar, often referred to as a shock collar, is a device used primarily for training pets, especially dogs. It typically consists of a strap that fits around the animal's neck and a small electronic unit that can deliver various types of stimulation, such as vibrations, sounds, or mild electric shocks. The purpose of the collar is to reinforce commands and discourage unwanted behaviors. These collars can be controlled remotely by the owner or set to activate automatically based on specific behaviors. While some trainers find them effective, their use is controversial, with concerns about animal welfare and the potential for misuse. Proper training and understanding of the device are essential for safe and humane use.