Premier Pet Wireless Add-A-Dog Collar.  NIB - open box but never used.  Allows you to expand your Premier Pet Wireless Fence system to include more dogs or serve as a replacement/extra receiver collar.

Key features and information:

Compatibility:

Works with Premier Pet Wireless Fence systems (e.g., GIF00-16917 or GIF00-16347) and can also be used as a replacement or extra collar.

Functionality:

Adds an additional dog to your wireless fence system, providing a warning tone as the dog approaches the boundary and static correction if they continue.

Correction Levels:

Offers 5 adjustable levels of static correction and a "tone only" mode for training.

Indicators:

Includes a low battery indicator to alert you when the battery needs replacement.

Durability:

The collar is waterproof.