- This new amplification system for classroom settings utilizes radio frequency (RF) wireless technology for exceptional sound clarity. The microphone is equipped with Revolabs RF-Armor technology that makes it impervious to unwanted audio interference, like the buzz caused by certain types of cell phones and PDAs. Further, there is no need to be concerned about line-of-sight issues impacting wireless connectivity as exists with other transmission methods. The system allows a teacher to walk anywhere in a classroom without concern about sound degradation.
