ACTIVATES POWER PET DOOR: Official High Tech Pet MS-5 ultrasonic collar transmitter — engineered specifically for reliable Power Pet door activation. Door performance warranty only applies when used with genuine MS-5 collars, and door performance and pet safety only guaranteed with collars made by High Tech Pet. STRONG SIGNAL and LONG BATTERY LIFE: Maximum output of any ultrasonic collar. Produces a continuous, non-interrupted signal for dependable activation of your Power Pet door and features efficient, low current circuitry to provide long battery life. BATTERY INCLUDED: Class A Super Long Life with a 320 mAH life (compare most others at 270 mAH hours or less). STRONG AND DURABLE, designed for the "ruffest" pets. WATERPROOF: Submersible up to 3 meters. CONVENIENT BATTERY TEST BUTTON included. Check battery condition any time. Battery LED does not drain battery when not in use. BACKED BY HIGH TECH PET Brand, Leaders in Automatic Pet Door Technology for over 30 Years, Backed by Live, Friendly USA Based Customer Servicve Experts. We are here when you need us. STYLISH DESIGN with superior quality nylon strap comfortable on most dogs and cats with embroidered logo so you know it is a genuine High Tech Pet brand product. Give your pet the perfect blend of durability and style with the High Tech Pet Deluxe Collar. Crafted from premium materials, this collar is built to handle everyday adventures while keeping your pet comfortable. It comes complete with an MS-5 transmitter and a protective boot cover, making it the ideal companion for any Power Pet automatic pet door. Reliable, stylish, and designed for seamless compatibility—because your pet deserves the best!