The FieldTrainer 425 takes probably the most advanced, industry-leading technology that SportDOG Brand has ever built into its e-collars and packaged it up in probably the most compact system ever offered. Ideal for coaching within the yard or field, or for hunting with close-working dogs, the SD-425 lets you switch right away between 7 levels of low/medium stimulation, in addition to train with vibration and tone.
500 yard vary
7 right away selectable levels of static stimulation in low/medium ranges; Strategy to train with vibration and tone
Expandable to 3 dogs with purchase of extra SDR-AF Add-A-Dog Collars
DryTek water resistant and submersible to 25 feet
Rechargeable lithium-ion batteries last 50 – 70 hours per charge