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-A Add-A-Dog Receiver for the SportHunter 1825. Compatible with SportHunter SD-1825 and Wetland Hunter SD-1825Camo, the SDR-A Add-A-Dog Receiver comes with a convenient docking station that charges the collar in 2 hours.