Speed Force transmitter

The Speed Force transmitter is a device that transmits the Speed Force in a speedster's system to another, developed by Dr. Harrison Wells.

History
Dr. Harrison Wells agreed to help Zoom steal the Flash's speed due to the latter's threat on his daughter's safety. A concrete plan started to form when Team Flash captured Russell Glosson; Wells later took a further step by getting a brain tissue sample of him in order to study him, consequently killing Glosson in the process. Wells recorded his journal entry 1-14 on his next gen watch that, by studying the Turtle's brain matter and the encounter with the Reverse-Flash, he completed a device that could harness the Flash's speed when he tapped into the Speed Force, which he installed behind the Flash's white emblem of the Flash suits. It proved to have worked when the Flash went to face Joseph Monteleone for the first time; Wells successfully transmitted some of the speed and later on gave it to Zoom.