Just place the collar on your dog or cat and put the receiver module in the restricted area

• Portable, lightweight and compact
• Uses painless, audible sound, not shock
• Activated only by pets, not people
• Range is fully adjustable from 1 to 35 feet
• Rugged, waterproof outdoor design
• Keep your dog or cat out the trash, away from the petunias and teach him to stop digging under the fence all at the same time. Use model YB-1 outdoor sonic fence kit or as an accessory to the humane contain, model X-10, in-ground electronic dog fence. Put a YBR-1 extra receiver in additional restricted areas (sold separately). This extra receiver module is triggered by MS-2 and RX-10 electronic collars. It uses painless sound, not electric shock, to keep your pet out of flower beds, gardens, off the porch, away from pools, ponds, trash cans or any other off limits area. The Yard Barrier's heavy duty outdoor receiverunit may be placed anywhere that is "off limits" to pets. The light weight electronic pet collar sends an ultrasonic signal that triggers a loud audible sonic blast at the receiver unit when the pet approaches. Dogs and cats are easily trained to stay away! The electronic transmitting collar and the receiver are water resistant and weatherproof. This ultrasonic controlled system is superior to cheaper infrared devices because it allows people to come and go without triggering the alarm. The sonic alarm is triggered only by your pet's individual electronic transmitting collar.