What are the differences in transmitter (remote) sizes?

We sell remote collars that range from really small-sized transmitters (E-Collar Technologies ET-300-A) to the largest on the market (Garmin Trashbreaker PRO). We also have many sizes in between.

Some folks like them small. Some folks like them big. It really depends on the user.

I tend to decide what features I want and then I get the smallest transmitter I can without losing any of these features.

As a general rule I do not care for really small transmitters. They tend to be hard to find on a hunting setup, but this varies from person to person.

Small transmitters can also be hard to operate if you have large hands or wear gloves when you work your dogs.