D.e. Systems Border Patrol Additional Collar

Expand your Border Patrol TC1 with additional collars. Systems expands up to 5 dogs. Waterproof Collar: 3.25" x 1.75" x 1.75" 10 oz (27" strap) Recommended for dogs 30 lbs or larger Expandable to 5 dogs - Add-on (TC1-Add) collars Warning Zone notifications - collar can be programmed to Vibration or Audible Beep (other options for Warning Zone notifications are Vibration or Beep followed by delayed Stimulation) Rechargeable Li-Ion batteries (Battery Life varies depending on settings: typically 12-24 hours for collar)