PetSafe 100-Yard Remote Trainer System An effective and reliable training method that can help correct unwanted behaviors and simplify pet ownership. Each training system comes equipped with three levels of stimulation: tone-only (beep), vibration, and 15 levels of static. Levels 8 through 15 of static are locked to prevent accidental correction. A lightweight and ergonomically designed system. Both the Lite and Standard systems fit dogs weighing more than 8 pounds, with neck sizes up to 28". 100-Yard Trainer System Packages Include: Training Collar with an adjustable, replaceable Nylon strap Ergonomic Digital Remote Test Light Tool USB Charger Short and Long Contact Points Operating Guide One Year Warranty Do NOT attach a leash to the training collar. Do NOT leave the collar on the dog for more than 12 hours. Frequently check the collar's fit for proper use. To ensure a proper fit, please consult the operating guide.