FieldTrainer SDR-FS Add-A-Dog is an additional collar for the SD-400.
Features Include:
The SDR-FS weighs only 2.8 oz.
Fully waterproof and submersible
Includes 2 collar straps (green and black)
Low Battery Light
NiMH rechargeable batteries, which allow for longer usage between charges
Lifetime Warranty
Fits up to a 23" Neck!
