High Tech Pet MS-5 Waterproof Microsonic Collar operates all High Tech Pet Power Pet electronic pet doors as well as Sound Barrier and Yard Barrier sonic fences. Using all digital circuitry, this state of the art design provides a stronger signal and maintains better accuracy over all temperature ranges. With a fully enclosed ultrasonic speaker, the MS-5 is waterproof and rugged. It's perfect for the pet who likes to do some serious "ruff housing". The MS-5 is fully immersible and will continue to work when wet. It will stand up to heavy rain showers and is perfect for dogs who love to play in the snow. The enclosed transducer (speaker) is much more robust than conventional open air transducers and will stand up to far more abuse from your pet. Small and lightweight, one size fits all dogs and cats. Comes with an attractive and tough 27 inch nylon strap

• Operates all High Tech Pet Power Pet electronic pet doors as well as Sound Barrier and Yard Barrier sonic fences
• With a fully enclosed ultrasonic speaker, the MS-5 is waterproof and rugged
• Immersible Up To 6 Ft.
• Super rugged design
• Included One 3V1A Battery