The Innotek Ultra systems are hands down the safest containment systems you can use for your dog. These devices can be installed quickly and the collar used is comfortable allowing your dog to wear it for longer than many other models available on the market today. With the 4200 Innotek has combined their best selling in ground fencing with a sleek, slim new collar that was designed through consumer feedback to work better and be more comfortable that any other similar collars on the market today.
A lithium ion battery is used with the collar and is rechargeable with a warning system so you know when the need for a charge is coming. Never will you ever have to worry about dead batteries and no replacements in the house. Even if you forget to recharge once you’ll still be covered because this unit has a AA battery backup (AA batteries not included). A couple of great and unique features are a collar that is designed to contour with the shape of your dog’s neck, the system performs self diagnostics and automatically tests for proper fitting, and instant information on the current strength of the battery.