Need to add 2 dogs to the Sure Stim M Plus remote trainer?
The Dogtra SureStim M-PLUS 1/2 Mile Extra Collar RX is the extra collar for SureStim M Plus receiver which can add up to 2 dogs on the SureStim M Plus remote trainer. It is fully waterproof and is ideal for small / medium size dogs over 15 lbs.
For dogs over 15 pounds
Range up to 1/2 mile
Low to Medium Power
Nick, Constant, and Non-stimulation pager vibration