This lightweight, waterproof receiver has four levels of static correction and a tone only mode to match the sensitivity of your pet. It can be used to add extra pets to your existing fence or to replace your current receiver collar. It is compatible with all PetSafe in-ground Fence systems except for Classic and YardMax. Trust PetSafe to help keep your pet healthy, safe and happy.

• Add unlimited pets to your system - Keep as many pets as you need safely in your yard with this add-a-dog receiver collar, compatible with all PetSafe in-ground systems except Classic and YardMax
• Four levels of correction - plus tone only mode for training, pets can be trained in 2 weeks when used as directed
• Waterproof receiver collar - with low battery indicator
• Adjustable receiver collar - fits pets 8 lb or more with neck sizes 6 to 26 in
• Short and long contact points included - for pets with long or short hair
• Battery included - features easy-to-install RFA-67 battery
• Safe, effective, trusted - our static collars are part of our ongoing mission to provide the excellent tools, education and support for pet parents seeking safe, successful, expert-recommended options to meet each dog's unique training needs

• https://assets.unilogcorp.com/187/ITEM/DOC/PetSafe_102155455_Instruction_Installation_Manual.pdf Instruction/Installation Manual