Master Volume Control: This knob adjusts the overall output volume of the speaker.
Channel Inputs: The speaker has two input channels, each with a combo XLR/TRS jack for connecting microphones or line-level sources.
RCF Logo: This indicates the manufacturer of the speaker.
12" Label: This specifies the size of the speaker's woofer.
Active Professional Speaker System Label: This indicates that it is a powered speaker with built-in amplification.
TT12MP Label: This is the model number of the speaker.
Power Input: This is where the power cable connects to the speaker.
Power Switch: This turns the speaker on and off.
Caution Symbol: This indicates that there is a potential safety hazard.