The FrontRow teacher classroom wireless mic is delightfully simple - it does more with just one button than other classroom wireless mics do with six! The Smart Button enables voice commands to control the system and initiate automated lesson capture with the Smart Receiver. The Smart Button can also be configured as a trigger button - press and hold to turn on projector or to start and stop lesson capture. It's the mic you never need to turn off - it just goes to sleep when not in use. Because it uses a longer-lasting lithium battery, it's also lighter and more comfortable. Best of all, it sounds much better than other mics thanks to superior element suspension, better frequency response, and low-distortion digital synthesis. Now with FrontRow's exclusive IR G3 technology, the ITM-02 teacher microphone is more powerful than ever with amazing room coverage so teachers are sure to be heard no matter where they are in the classroom.