Cutting Edge Technology...Wrapped in Only 3.7oz Patented antennas expertly integrated into the rubberized collar strap provide reliable communication path with the Fence Controller. This enables the System to track the real-time distance to your dog, alert you if your dog breaches the 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. Durable Collar Design Our comfortable water resistant Radial-Shape Havahart Wireless Electric Dog Collar maximizes the safety and freedom of your dog. The 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 10-17 inches. The battery cap has been designed to sit flush with the battery housing and requires a coin to open or tighten the cap. The total collar weight is 3.7oz. The Radial-Shape2 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 consecutive 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. Your Dog"s Safety is our Top Priority 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 occur only if he again enters the Trigger Zone. Additional Specification of the Radial-Shape2 Wireless Collar Designed for any breed of dog older than 6 months and weighing more than 8 pounds. Unlike competitive products, you set the correction that best fits your dog and your interest. It is your dog, so you should be able to control the correction. Havahart Wireless Collar comes with two sets of correction probes: Short probes for short-haired dogs and long probes for long or thick-haired dogs. The Collar requires one rechargeable battery (included) for operation. Battery life is dependent on how frequently the dog tests the Trigger Zone as well as the degree of your dog"s activity. It is recommended that batteries are charged nightly. What"s in the Box? Havahart Wireless Collar (comes with factory installed long probes) 2 rechargeable batteries for collar Extra set of collar probes for short-haired dogs Heart-shaped collar tester