A true wireless remote control electronic fence. If the dog exceeds the setting activity range, the Pet Containment System will start the alarm sound & static shock cycling working modes. The receiver keeps working until your dog returns to the setting range. The safe dog wireless fence is an effective and harmless dog containment system to avoid your dogs' limited activities and lost.

Dog wireless fencing system with Completely Wireless System & Super Large Controllable Rangetake the transmitter as center, it's biggest remote-control semidiameter is 500 meters. The signal intensity of transmitter can be adjusted from 0 to 100 levels, and the correspondent distance of receiver should be 20-500 meters.

Progressive tone stimulation - When the dog approaches the border, a warning sound is first heard. If you continue to approach, the system will have a slight impact.pulse proportional stimulation - human high-tech design, the vibration intensity depends on the distance of the dog near the boundary line, the closer the dog is to the boundary line, the greater the vibration intensity.

The collar size ranges from 8 to 21 inches and is suitable for dogs of all sizes (10 to 110 lbs) and can be adjusted.(Recommended for dogs over 3 months).The receiver operates at low and emits static electricity. The conductive posts are covered by a silicone jacket that does not harm the dog and its hair at all.

Our transmitter can control multiple rechargeable and waterproof receiver collars,There are 1 dog system, 2 dog system, 3 dog system, you can choose to buy according to your needs.Our KD-661C is an upgraded version of the KD-661. Both the transmitter and receiver are rechargeable. They both contain rechargeable lithium batteries and last long.