The FieldTrainer® 425S takes the most advanced, industry-leading technology that SportDOG® has ever built into its e-collars and packaged it up in the most compact system ever offered. 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 stimulation, as well as train with vibration and tone options

Features:

• Range - Up to 500 yards
  Stimulation Ranges - 7 instantly selectable static stimulation levels with medium/high stim ranges. Option to train with vibration and tone
  Expandable System - Expandable to 3 dogs
  Waterproof - DryTek® waterproof and submersible to 25 feet
  Dog Size - For dogs 8 pounds or larger with neck sizes 5" - 22" 
  Batteries - Rechargeable lithium-ion batteries. Charge in 2 hours, last 50-70 hours per charge
  Low Battery Indicator
• Product Dimensions - Receiver without strap - 2.60"L X 1.30"W 1.23"D. Remote Transmitter with antenna - 5.30"L X 1.70"W X 1.00" D

Contents

• 
  Remote Transmitter
  Receiver on 3/4" Collar Strap
  Charging Adaptor
  Standard Contact Points
  Long Contact Points
  Lanyard
  Test Light Tool
  Operating Guide
  Basic Training Manual & DVD

Accessories:

SDR-AS FieldTrainer® 425S Add-A-Dog® Collar
SDR-AS

Replacement Transmitter (SD-425 & 425S)
SDT54-13889
Charging Adaptor (SD-425 Series & 825)
SAC00-13736

Transmitter Battery Kit (SD-425 Series)
SAC54-13734
Receiver Battery Kit (SD-425 Series & 825)
SAC54-13735
Long Contact Points
SAC00-12570
Standard Contact Points
SAC00-12571