Model MS-5 MICROSONIC™ Ultrasonic Pet Door Collar Include Extra Batteries?:2 Extra Batteries (+13.99) A far more effective and

A far more effective and humane method of delivering shock stimulus

The maximum field width possible will depend upon your particular installation

No need to adjust a manual timer

In the event of a power outage the battery takes over

Sound Barrier Indoor Pet Barrier

Model MS-5 MICROSONIC™ Ultrasonic Pet Door Collar Include Extra Batteries?:2 Extra Batteries (+13.99) A far more effective andSuper Advanced Technology, Value Pricing! The Gold Standard of Pet Electronics Technology Digital circuitry in this state of the art design provides a strong signal and maintains accuracy over all temperature ranges. It is extra rugged so it won't get damaged during your dog's "ruffhousing". With a robust, fully enclosed ultrasonic transducer speaker, it is immersible to 6ft., and although we don't recommend immersing your dog in 6 ft. of water