Controlled Entry Distributors SU7315LMD21K User manual

Hello! I've reviewed the user manual for the Transmitter Solutions Firefly TRAFIR315LMD21K transmitter. This document provides information on the device's technical specifications, coding, operation, battery access, and troubleshooting. The device is a key chain style wireless transmitter with an integrated flashlight. I'm ready to answer your questions.
What type of battery does the transmitter use?

What is the operating frequency of the transmitter?

What receivers are compatible with this transmitter?

How can I access the toggle code switch?