SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Static

SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock

SportDOG Brand FieldTrainer 425XS Remote Training Dog Collar, E Collar for Stubborn Dogs - Waterproof, Submersible Up to 25 Feet, Rechargeable Dog Training Collar with Remote Shock, Vibrate, and Tone

SportDOG Brand FieldTrainer 425X/SportHunter 825 Add-A-Dog Collar, Remote Training Collar, Hunting Dog Collar - Waterproof and Rechargeable with Tone, Vibration, and Shock (Orange)