ARC ADD RX
This Dogtra ARC Remote Trainer 3/4 Mile Extra Collaris an additional low profile receiver collar that is ergonomically shaped to your dog’s neck, for the ARC Remote Trainer Collar System! This Extra Collar will let you train up two dogs, as the ARC Transmitter is expandable up to 2 dogs.
The Dogtra ARC Remote Trainer 3/4 Mile Waterproof Extra Collaris recommended for dogs of 15 pound and up. The collar is fully waterproof so don't worry, you'll be able to have nice wild walks with your best friends!
Here is a nice video showing how to use the Dogtra ARC e-collar 2 dog system, with this extra Dogtra ARC collar!