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 Review
This is the SDR-AF Collar Receiver only; Compatible with the SportDOG Brand FieldTrainer 425 (SD-425) and SportHunter 825 (SD-825) The FieldTrainer 425 and SportHunter 825 Remote Trainers can be expanded …