SportDOG Brand FieldTrainer 425 SportHunter 825 Add A Dog Collar Additional, Replacement, or Extra Collar for Your Remote Trainer Waterproof and Rechargeable with Tone, Vibration, and Shock Obsidian Obsidian Wolf Grey Details: From no look passes to Details: From no look passes to lockdown defense •Unique outsole technology developed by Babolat Add another dog to your current SportDOG Brand electronic training collar system or replace a Collar Receiver with the SDR AF Add A Dog Receiver Collar The FieldTrainer 425 and SportHunter 825 Remote Trainers can be expanded to train up to 3 dogs with the same Handheld Transmitter with the purchase of this SDR AF Add A Dog Collar
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