The ALLOTECH 114253 transmitter (pack of 2) is a pack of two remote controls made by the manufacturer ALLOTECH. The two remote controls shown here have four buttons and operate at a frequency of 433.92 MHz. This allows the user to customize the commands associated with each button and easily control their automation system. The manufacturer says that up to 10 different devices can be controlled using key combinations. Additionally, it is important to note that both of these remotes use a rolling code.