Dogtra Pathfinder2 Add-a-Dog Electronic Collar - The additional PATHFINDER2 GPS Collar for the expandable PATHFINDER2 GPS Dog Tracking and Training System. Features include: LED Locate Light， Pager Vibration， Tone， Nick and Constant E-Collar training functions with a 9-Mile tracking range and is fully waterproof. Users can pair up to 21 dog collars to the PATHFINDER2 system.

• This GPS dog tracking collar is designed to be paired to the PATHFINDER2 GPS Connector in order to operate. 
• PATHFINDER2 GPS Connector required to operate and is sold seperately. 
• Compatibility: Only PATHFINDER2 Series， PATHFINDER2 App， PATHFINDER2 GPS Connector