The electronic collar 640C Tom Davis Edition is made with Dogtra's smallest ultra-compact receiver that offers low to medium stimulation from 0-127 levels. The stimulation level 0-127 is controlled by a Rheostat dial, a patented technology that ensures precise setting for each dog.

It offers all the essentials for dog training in an ultra-compact unit without sacrificing the advantages of a remote training tool. This is the perfect remote training tool for basic obedience or field training.

It is designed for dogs weighing up to 5 kilograms.