The SportDog SDR-FS FieldTrainer Add-A-Dog Receiver Collar allows you to add a new pet to an existing transmitter, or replace a lost or broken receiver without the expense of buying a new system. This receiver collar is original equipment for the 400 series FieldTrainer system, and can be used with any SportDog brand SportHunter, FieldTrainer, ProHunter, WetlandHunter, and HoundHunter transmitters. (Note: not compatible with the SD-1825 or SD-1825 CAMO transmitters).  System includes: Receiver, 2 collar straps, battery charger.

Features:

SportDOG lifetime limited warranty
2 Collar Straps included with Receiver
Lightweight, compact receiver weighs 2.8 oz.
LED indicator operates as charging and test light
100 % waterproof and submersible receiver collar
Rechargeable and user-replaceable NiMH batteries