The Educator EZ-900 Easy 1/2 Mile E-Collar Remote Dog Training Collar is a high-quality and effective training tool for dogs. With a range of 1/2 mile and a waterproof design, this collar is suitable for dogs weighing 5 lbs and up. It features an adjustable stimulation level from 0-100, ensuring a customized training experience. The collar also includes maximum stimulation and lock-and-set features for safety, as well as 7 vibration settings and 4 tone settings for additional training options. The COS technology provides clean stimulation without causing head jerking, and the boost feature allows for intensified stimulation when needed. The tapping sensation adds an effective element to the training process. The patented Instant Stimulation Mode eliminates surprise shocks, ensuring a controlled training experience.