SportDOG Brand® SportHunter® 825X

21 levels of static stimulation and the option to train with vibration and tone Expandable to 3 dogs with purchase of additional Add-A-Dog® collars (SDR-AF) Waterproof and submersible to 25 feet using DryTek® technologyYou may also like SportDOG Brand FieldTrainer 425X Remote Trainer - 500 Yard Range -Black.