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 Brilliant Blue The preset programs alternate between

The preset programs alternate between high intensity and low intensity recovery periods to improve your aerobic capacity and burn calories after your workout

camera sharing

but the food size can not exceed 0

adding to its impressive versatility

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 Brilliant Blue The preset programs alternate betweenBrand: SportDOG Brand Color: Orange collar, black receiver unit Features: 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 to train up to 3 dogs with the same Handheld Transmitter with the purchase of this SDR AF Add A Dog Collar Features DryTek technology making this collar waterproof and