High Tech Pet Power Pet Plastic Pet Door Collar

Our new digital MS-4 ultrasonic pet collar is the enhanced replacement for our MS- 2A. Using digital circuitry, the state of the art design provides a stronger signal and maintains better accuracy over all temperature ranges. It also uses our specially designed B3V1A battery which lasts about 3 months and prevents damage to the circuitry if the battery if installed incorrectly. With a fully enclosed ultrasonic speaker the MS-4 is more water-resistant and rugged that the original MS-2. It's perfect for pets who like to do some serious "ruffhousing". While we don't recommend letting your pooch take it for a dip in the pool, our new MS-4 is fully immersible for short periods of time and will continue to work even when wet. It will stand up to heavy rain showers and is perfect for dogs who love to play in the snow.