The unit is tightly enclosed for waterproofing reasons it will not be beeping loud. If you wish to hear the unit beep, take the lid off, and test the receiver against the wire. Also check to make sure the battery is good. How many dogs can I put on the system? As many as you wish, but each dog will need a separate collar. Will this unit harm my family with pace makers? Contact the manufacturer of the pacemaker, and let them know we are using a 10.65KHz signal The Sport Dog Remote Trainer is the first full featured remote training collar designed for both the professional trainer and the average pet owner with no training experience. This remote training collar is most appropriate for dogs over 15 pounds that are easy or average to train. A complete, comprehensive training manual and video shows how to properly use The Sport Dog Remote Trainer to make training a fun and rewarding experience for both the pet and the pet owner. The Sport Dog Remote Trainer can be used to deter unwanted behavior such as digging, chewing on furniture, jumping on guests, or barking. Or it can be used for basic obedience training such as teaching the "come" command. PST-100 Sport Dog 100 Yard Remote Training System

To ease the problems of pet owners whose busy schedules don''t always allow them to be home to feed their pets, the PetSafe Electronic Pet Feeder provides a welcome solution. This totally self-contained unit stores up to 20 pounds of dry pet food in an upright canister which calls the pet to dinner by a bell and then dispenses just the right amount of food at just the right time. You can program the Electronic Pet Feeder for more food at regular meal time and less food for snack times. No more overfeeding or feeding stale food. Great for diet control! The PetSafe Electronic Pet Feeder holds up to two weeks of food for the average dog. An easy-to-use keypad with an LED display makes programming as simple as setting a clock. Automatically feeds your pet the correct amount every time!