Advance Security H5OT14 User manual

Hello! I've reviewed the user manual for the 6703 Transmitter. This document outlines the device's three-button functionality for controlling different receivers, as well as instructions for battery replacement. I'm ready to answer your questions about this device.
What kind of battery does the transmitter use?

How many push buttons does the transmitter have?

What are the three buttons on the transmitter used for?

CAUTION: Changes or modifications not expressly approved by the manufacturer

responsible for compliance could void the user’s authority to operate the equipment