Here is another dog training tool that you can use for reward based training. The PetSafe Teach and Treat Remote Reward Trainer gives your pet kibble and other treats from up to 30 yard away. It has a lightweight design, so you can easily take it anywhere.
This training tool can be used for obedience, agility, crate, and potty training. It has an adjustable target and tone settings. Its dispenser holds up to 3 cups of treats.