PetSafe Rechargeable In-Ground Fence Receiver Collar. This extra Reciever Collar can be used to add another dog or as a replacement collar to PetSafe® In-Ground Fence™ systems. Compatible with PetSafe® In-Ground Fence™ systems: PIG00-13661, PIG00-10773, PIG19-11041, PIG00-11007, and PRF-3004W-20. Not compatible with PetSafe® Wireless Pet Containment System™, Stay + Play Wireless Fence™, UltraSmart™ Fence systems, or Innotek® Fence systems. Ergonomically-designed collar is smaller, lighter and more comfortable Exclusive ReadyTest® and PerfectFit™ test ensure the Reciever Collar is ready and working Anti-Linger Prevention stops dog from lingering in the warning zone and draining battery Pass-through receiver allows you to use any length of collar strap that is non-metallic and 1.9 cm wide Includes short and long contact points to customise for your pet Automatic Shut Off: Over Stimulation Protection: Stimulation stops after 15 seconds Batteries: Uses rechargeable battery Battery Charge Time: Battery recharges in 2-3 hours Battery Lasts: Each charge usually lasts 2 months Collar Size: Fits neck sizes 15 - 66 cm Waterproof: Waterproof Compatibility Compatible with PetSafe® In-Ground Fence™ systems: PIG00-13661, PIG00-10773, PIG19-11041, PIG00-11007 and PRF-3004W-20. Not compatible with PetSafe® Wireless Fence, PetSafe® UltraSmart or Innotek® Fence systems.