Expand your SportDog Dog Training Collar to two or more dogs.

Add another dog to your current SportDOG Brand electronic collar system or replace a lost or broken collar receiver with the SDR Add-A-Dog Receiver. This collar can be used with any SportDOG Brand FieldTrainer, SportHunter,  WetlandHunter, ProHunter, UplandHunter, or HoundHunter transmitter.