The FrontRow wireless teacher microphone is delightfully simple -- 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, to start and stop lesson capture or when used with our Conductor IP based intercom, bell and paging system, use it to call the office or send an alert. 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 necklace is more powerful than ever with amazing room coverage so teachers are sure to be heard no matter where they are in the classroom.* Amazing Sound Quality: Superb pick up and audio quality thanks to a high-isolation microphone suspension, broad frequency response, and low-distortion direct digital synthesis.* Amazing Room Coverage: With FrontRow's exclusive IR G3 technology the ITM-02 is more efficient and powerful so you are sure to be heard no matter where you are in the classroom.* Smart Button: Controls all of the features of the Pendant Microphone. Use with voice command to activate the lesson capture software and control your system or even projectors and other devices. Or use the button as trigger to activate an event programmed in the Smart Receiver - press and hold to turn on a projector, press and hold again to turn it off or press and hold to make an intercom call when used with Conductor. When the Pendant Microphone is in standby mode, press momentarily to awaken. When the Pendant Microphone is active, press momentarily to mute/unmute. Press and hold to issue a voice command.* Superior Comfort: Lightweight (just 73.7g) with soft backing that provides comfort and reduces friction noise from contact with clothing, buttons or jewelry. Ergonomic lanyard suspension points keep the mic stable and help keep it from swinging away from the body when leaning over to help a student.* Lithium Ion Battery: 3-year life expectancy, lightweight and rechargeable.* Charging/Programming Jack: For charging via USB cable or for configuring settings.* Portable Audio Interface: 3.5mm audio input jack for wireless transmission from any secondary audio source such as a computer or MP3 player.* Charge Contacts: For use with the optional IMC-01 microphone charger.* Adjustable Power: Factory set to achieve complete coverage in a typical classroom with 7 hours of talk time. Increase talk time or expand coverage for very large rooms with a quick software adjustment.* Programmable Channels: Program the switch positions to 2 of 7 available channels.* Digital Naming: Assign custom names to microphones for easy identification in the Teacher Edition software.* Data Transmission: Reports battery status to Teacher Edition software so you are sure to know the status of your battery at a glance.