Custom-Shape Havahart® Wireless Extra Collar
Our comfortable water resistant Custom-Shape Havahart® Wireless Electric Dog Fence Extra Collar maximizes the safety and freedom of your dog. It fits dogs with neck sizes from 14 to 26 inches. The wireless fence system can accommodate up to 2 collars. Every wireless fence system has 1 Collar included. Discover the difference our electric dog Collar can make in your dog’s life.
Cutting Edge Technology
The Collar harnesses the next generation of wireless fencing technology. Patented antennas integrated into the rubberized collar strap provide a reliable path of constant communication to the Bases. This enables the System to track the real-time location of your dog, alert you if your dog breaches the wireless electric fence boundary or if the Collar’s battery is low. Integrated Motion Sensor Technology allows the Collar to conserve battery life when your dog is not moving.
Collar Design
Our comfortable water resistant Custom-Shape Havahart Wireless Electric Dog Collar maximizes the safety and freedom of your dog. The new collar strap is made from heavy gauge nylon webbing that houses the Patented antennas and has a durable 3/4 inch snap buckle closure. The collar fits dogs with neck sizes from 14-26 inches.
The battery cap has been redesigned to be flush with the battery housing and requires a coin to open and tighten the cap, in order to secure the battery in place. The total collar weight is 3.7 oz. The wireless fence system can accommodate up to 2 collars.
Customizable Settings

Using the Controller, the Collar can be programmed to tone only (auditory correction) or one of 5 different static correction levels depending upon the size, age and temperament of your dog. The default correction level is tone only. The Collar should not be on your dog for more than 12 hours.
Easy Set Up

With the touch of a few buttons, the Collar can easily be paired to your System. Long or short Probes (included with your System) can be used depending upon the thickness of your dog’s coat.
Safety Features
Havahart Wireless created a wider Trigger Zone- 6 to 13 ft- to keep your dog safe and away from danger.
The Collar is designed with a Safety Time-Out Feature that stops the correction cycle ( a series of static pulses) after 30 seconds. After the correction cycle times out, your dog will not be corrected for returning to the Roaming Area. Once your dog returns to the Roaming Area, the Collar will revert to its normal operating mode and correction will only occur if he again enters the Trigger Zone.
The system will alert you if your dog has breached the Fence Boundary or if your batteries are running low.
Havahart® Wireless—the leading innovator of digital wireless fence solutions
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The Havahart® Wireless Advantage
Advanced Technology Makes it All Possible
The Custom Shape Havahart® Wireless Dog Fence is driven by nanoLOC TRX 2.4 GHz transceivers that have been enhanced with complex algorithms, strategic distortion filtering and modular signal amplification.
These enhancements boost the performance of the Havahart® Wireless Dog Fence system over the competition by giving them enhanced signal strength, smarter filtering capabilities and more reliable communication to deliver advanced time-of-flight-ranging technology.
Havahart® Wireless dog fence systems use the Kalman Filter, the same data-filtering technique used by NASA. Through advanced analysis, Havahart Wireless systems are capable of rejecting the statistical anomolies that can result in a fuzzy boundary.
This analysis, combined with the appropriate hardware and software, pushed the nanLOC transceiver to perform beyond its standard capabilities.

This translated into a crisper boundary, giving the Havahart® Wireless electric fence systems the ability to maintain constant signal strength throughout the entire electric fence boundary.
What truly sets the Havahart® Wireless electric fence system apart from the rest and defines how a wireless electric fence should really work, is its patented time-of-flight ranging technology between the Bases and the dog Collar.
Time-of-flight is the time it
takes for a signal to travel from a Base to the Collar and back at the speed of light. By continually communicating to the Collar each Base is able to track the real-time distance to your dog. Based on the data that is continually captures, filtered and refined, the Base can determine whether or not
a correction should be delivered.

Better yet, with motion sensor technology, if your dog isn’t moving within the Roaming Area, the sampling rate becomes less frequent, saving battery life.
Trilateration
When radio signals are sent from the antennas of the Bases, they propagate in a spherical manner. When at least 3 Bases provide 1 common point of intersection, the wireless fence system is able to accurately pinpoint the real-time location of the Bases or the Collar. Because each of the Bases is at the same relative height throughout the home, the intersection of the 3 spherical signals is known as trilateration.
Event Stamp Mapping
As the Controller moves along the flag line, the Master Base records each trilaterated point of your wireless fence, thereby memorizing the location of the entire fence. This process of memorization is known as event stamp mapping. Similar to the way GPS technology works, event stamp mapping allows you to create a wireless electric fence of virtually any shape and dimension.
Exclusion Zones
The Custom-Shape Wireless Dog Fence System can create Exclusion Zones that are recorded inside the Roaming Area to keep your dog out of designated locations such as large gardens and pools.
Trilateration combined with event stamp mapping enables the Custom-Shape Wireless Dog Fence to track the real-time location of your dog in relation to the Wireless Fence Boundary. This allows the system to know when your dog crosses into the Fence Boundary Trigger Zone, deliver a correction and alert you of the breach.
These enhancements comprise the core of the patented elements that provide an unparralled level of technical sophistication in the wireless dog fence industy.
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