This waterproof receiver has 4 levels of correction to match the sensitivity of your pet plus tone-only mode for training. It includes an adjustable nylon collar, battery, short Contact Points and Operating Guide. It is compatible with all PetSafe(R) in-ground fences and can be a replacement to Pet Safe's Deluxe In-Ground Fence (PRF-304W). | PetSafe Deluxe In-Ground UltraLight Receiver Dog Collar