SDR-AX - additional collar

COLLAR COMPATIBILITY:
FieldTrainer® 425X (SD-425X), 425XS (SD-425XS), 425 (SD-425), 425S (SD-425S)
SportHunter® 825X (SD-825X), 1225X (SD-1225X), 1825 (SD-1825X), 825 (SD-825), 1225 (SD-1225), 1825 (SD-1825)
SportTrainer® 575 (SD-575E), 875 (SD-875E), 1275 (SD-1275E)
WetlandHunter® 425X (SD-425XCAMO), 1825 (SD-1825XCAMO), 425 (SD-425CAMO), 1825 (SD-1825CAMO)
ProHunter® 2525 (SD-2525)
HoundHunter® 3225 (SD-3225)
UplandHunter® 1875 (SD-1875)