Yard and Park Remote Trainer by Petsafe

PetSafe says:

With a range of up to 400 yards away, this trainer lets you manage your furry friend’s unwanted behavior even if he’s not wearing a lead – and when he’s at a distance. The unit has 8 levels of correction and a lightweight collar that can fit any dog comfortably.

Product Features

    * 8 levels of correction
    * Range up to 400 yards
    * Positive and Negative tone buttons
    * Rechargeable batteries