Genuine MS-5 Power Pet Door collar from High Tech Pet, makers of your Power Pet brand automatic pet door. This is a quality, value priced product designed to compete with low priced, imported knockoffs that may not open your Power Pet door consistently. Produces a continuous, non-interrupted, inaudible ultrasonic signal for dependable activation of your Power Pet door. Superior quality nylon strap, 5/8" width comfortable on most dogs and cats with embroidered logo so you know it is a genuine High Tech Pet brand product. New Improved Waterproof Design is submersible to 3 meters. Includes Standard Battery with a certified 270 mAH (milliamp hour) rating. Typical battery life is up to 3 months. (Knockoffs don’t include battery.) The MS-5 Designer Series automatic pet door collar is manufactured by High Tech Pet and is designed for use with compatible Power Pet electronic door systems. The collar emits an ultrasonic signal with coded technology to activate the door when your pet approaches. The collar includes a High Tech Pet B3V1A Class A battery with a rated capacity of 320 mAh. One battery is included. Battery life varies depending on frequency of use and operating conditions. Each collar is assembled in the United States and ships from Ventura, California. This collar is intended as a replacement or additional collar for compatible Power Pet electronic pet doors.