|DogTrainerStore.com provides all Dogtra
products including e-collars, remote trainers, beeper collars,
containment, no bark collars, and more. All Dogtra products
come with limited lifetime warranty begins from the date of
SureStim M Plus
Finally, the Dogtra expandable system is available. Dogtra SureStim M is fully expandable to a two-dog unit and feature a pager in the handheld transmitter, acknowledging that you have fully engaged the transmitter buttons. Ideal for small/medium dogs.