Description Contain an unlimited number of pets with our smallest wireless receiver collar that features a rechargeable battery and 5 adjustable levels of static correction. This extra receiver collar can be used to add another dog or as a replacement collar to the Stay + Play Wireless Fence. This collar is also compatible with the original Wireless Containment System. This new version of the collar now comes with the charger. Key Benefits Smaller, lighter, more comfortable and ergonomically designed collar is waterproof. Recharges in 2-3 hours and LED lights indicate when recharge is needed. 5 adjustable levels of static correction, tone-only mode alerts your pet with a beep. Stay+Play receiver collar charger (RFA-463) now included. For dogs 5 pounds and up, fits neck sizes 6-28 inches. What's Included Rechargeable collar, collar charger. Precautions Avoid leaving the collar on for more than 12 hours a day. Please refer to packaged instructions for additional details. Usually 120$ plus