SportDog FieldTrainer® 425X/SportHunter® 825X Add-A-Dog® Collar

The Collar Receiver for FieldTrainer® 425X, SportHunter® 825X and SportTrainer™ 575E/875E Remote Trainers. Add another dog to your current SportDOG Brand® electronic training collar system or replace a Collar Receiver with the SDR-AFX Add-A-Dog® Receiver Collar.

Features

• Waterproof and submersible to 25 feet using DryTek® technology
• For dogs 8 pounds or larger with neck sizes 5″ – 22″
• Rechargeable lithium-ion batteries
• Charges in 2 hours, lasts 40-60 hours per charge