This set of two Airtronics Caliber 3P radio transmitters is perfect for any RC enthusiast. Designed for use with a variety of scales, these pistol transmitters are compatible with 1:18, 1:4, 1:5, 1:6, 1:8, 1:20, 1:50, 1:28, 1:16, 1:27, 1:15, 1:26, 1:48, 1:14, 1:36, 1:24, 1:12, 1:10, and 1:32 scales. The transmitters come with 5 TXRF modules, making them a great choice for those who want to add some extra range to their RC vehicles.

With their durable design and reliable performance, these Airtronics Caliber 3P radio transmitters are sure to provide hours of entertainment for RC enthusiasts of all skill levels. Whether you're a seasoned pro or just starting out, these transmitters are a great choice for anyone who wants to take their RC hobby to the next level

Unknown if they work. One of the controllers has the battery part that is broken off with just the power wires to it. It looks like it is more for parts.