The FieldTrainer 425S takes the most advanced, industry-leading technology that SportDOG Brand has ever built into its e-collars and packaged it up in the most compact system ever offered. Designed specifically for stubborn dogs, the SD-425S has a higher range of stimulation than the SD-425. Ideal for training in the yard or field, or for hunting with close-working dogs, the SD-425S allows you to switch instantly between 7 levels of medium/high static stimulation, as well as train with vibration and tone.
500 yard range
7 instantly selectable levels of static stimulation in medium/high ranges; Option to train with vibration and tone
Expandable up to 3 dogs with purchase of additional SDR-AS Add-A-Dog Collars
DryTek waterproof and submersible to 25 feet
Rechargeable lithium-ion batteries last 50 – 70 hours per charge