High Tech Power Pet Ultrasonic Pet Collars

Compatibility: Designed for High Tech Power Pet Electronic Pet Doors  Battery Life: 3 months of use, powered by B3V1A batteries Adjustable Collar: 1" to 24" collar range accommodates pets of various sizes Programmable Range: 1 to 10 feet operation range, adjustable for inside and outside separately This is the new MS-5 model which replaced the MS-4 model that is discontinued Upgrade your pet's freedom with the High Tech Power Pet Ultrasonic Pet Collars, designed to work seamlessly with all models of High Tech Power Pet electronic pet doors. These cutting-edge collar keys provide your pets with the independence they desire while offering you control over their access to the outdoors. The adjustable collar ranges from 1 to 24 inches, accommodating pets of various sizes. Durable & waterproof to keep up with your pet's lifestyle and activity levels. Both collar keys are powered by B3V1A batteries, providing approximately three months of use. The batteries are easily replaceable