C2G TruLink Audio Amplifier (Plenum Rated)It's unfortunate but true a lesson might be lost on students if they have trouble hearing the instructor. With the Trulink Audio Amplifier for classrooms students will remain attentive and better informed during class no more disengaged learners. With maximum sound amplification, this cutting edge system ensures consistent levels of audio through the classroom whether from the instructor, video or other multimedia source. Connects easily to classroom