For use with all High Tech Pet's Ultrasonic Controlled Products Including:

• All Power Pet door models,
• Sound Barrier Indoor Sonic Fence
• Yard Barrier Outdoor Sonic Fence
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  Features:
  
• Fully Enclosed, Waterproof Ultrasonic Speaker
• Long Life Lithium Battery
  Lasts about 6 months
• Tough Nylon Strap
• Comfortable On All Sized Pets from Kitten to Saint Barnard
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  By popular demand we've developed a special version of the our best selling MS-2 ultrasonic collar with a fully enclosed ultrasonic speaker. The new MS-2A is more water-resistant and rugged. It's perfect for the pet who likes to do some serious ruff-housing. While we don't recommend you let your pooch take it for a dip in the pool, our new MS-2A 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. The enclosed transducer (speaker) is much more robust than conventional open air transducers and will stand up to far more abuse from your savage beast. We highly recommend that you upgrade to the new MS-2A if you have a very active pet who likes to get wet.