This lightweight, rechargeable waterproof receiver collar has 4 levels of correction and tone-only mode to customize to your pet's personality. Works with PetSafe In-Ground Fence systems except YardMax® and UltraSmart® systems. This collar is compatible with the following PetSafe In-Ground Fence systems: PIG00-14673, PIG00-13661, PIG00-10777, PIG20-11041, PCF-1000-20 and PIG00-14582. Not compatible with PetSafe Wireless, PetSafe UltraSmart®, PetSafe YardMax ® or Innotek® systems. Key Features 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 YardMax® and UltraSmart® Rechargeable - Quickly charges in 2-3 hours with each charge lasting up to 2 months depending on use Waterproof - For all of your pet's outdoor activities Adjustable - With 4 levels of correction plus tone only; fits dogs 5 pounds and up with neck sizes from 6 to 26 inches Low Battery Indicator - Let's you know when it is time to charge your collar Charge Two Collars at Once - Two plug receiver collar charger Features For dogs 2.3 kg and up Fits neck sizes 15 - 71 cm 4 adjustable levels of stimulation Tone-only mode alerts your pet with a beep Waterproof collar submersible up to 1.5 metres Uses rechargeable batteries Battery usually lasts 2-3 months Battery recharges in 14 hours Good/low battery indicator This collar is compatible with the following PetSafe In-Ground Fence systems: PIG00-14673, PIG00-13661, PIG00-10777, PIG20-11041, PCF-1000-20 and PIG00-14582. Not compatible with PetSafe Wireless, PetSafe UltraSmart®, PetSafe YardMax ® or Innotek® systems System Includes Receiver collar with adjustable nylon collar Receiver collar charger Short and long contact points Test light tool Operating guide