Dogtra Additional Collar Receiver for 3500X System Bark Control The adaptor improves the performance

The adaptor improves the performance of the microchip reader when installing the PetSafe Microchip Cat Door into metal doors and supplies additional support for window and glass installations

as no product is completely indestructible

Includes Anti-Linger Prevention and Progressive 'run-through' Prevention

Assorted bright neon colors means high visibility

For dogs 8 pounds and up

Dogtra Additional Collar Receiver for 3500X System Bark Control The adaptor improves the performanceDescription Geared towards professionals, the 3500X receiver offers a 1. 5 mile range. Features: 1. 5 mile range. Collar is 1 x 30 inches Fully IPX9K waterproof certified receiver to withstand extreme training conditions For dogs up to 35 lbs