PetSafe Dog Training SDR-FS Extra Collar

SportDog brand's Add-A-Dog technology allows the FieldTrainer, SportHunter, WetlandHunter, and ProHunter models to use interchangeable e-collar receivers. Simply match any SportDog transmitter with any SportDog receiver in the field, press a button to program the receiver collar to the transmitter, and you're ready to go! Stop wasting time. Start hunting.

The SDR-FS is the original e-collar receiver for the FieldTrainer SD-400 and SD-400S. For replacement or to add additional dogs to your existing SportDog system. For maximum range offered by your model, choose the original e-collar receiver for your transmitter unit, but all SportDog FieldTrainer, SportHunter, WetlandHunter, and ProHunter transmitters and receivers are compatible/interchangeable (actual ranges may vary when mixing transmitter/receiver models).