The TeachLogic IRQ-3150 Quantum II Infrared Wireless Microphone System is the nucleus of the classroom sound field system which provides optimum voice reinforcement. The addition of a Quantum II sound system will transform your classroom into a totally hands free, voice re-enforcement system, resulting in reduced voice fatigue, enhanced student listening and improved student learning. The wireless function permits 360deg. connectivity throughout the classroom regardless of body position or orientation.

The system is comprised of an infrared detecting sensor. The sensor collects the IR wireless signal from the microphone/transmitter and sends a composite signal to the mixer/amplifier. The receiver transforms the composite signal into an analog audio signal which is fed to the Quantum II mixer. An additional audio sources, such as; computer, DVD, VCR or Projector can be plugged in to the Quantum II. The AUX IN level controls the individual audio input. The audio will then be fed to the speaker in the column for voice reinforcement throughout the room. On the front panel of the Quantum II, there is a 3.5mm output jacks for interface with an assistive listening system (ALS) or lesson capture (LINE OUT). The microphone / transmitter can be one or two Sapphire Pendants or Handhelds. The rechargeable batteries will provide 6 to 8 hours of service per charge. The drop-in charger will recharge the batteries overnight, ready for another day's use.

IRT-55 Sapphire Transmitter
The Sapphire's vocal clarity is unsurpassed. Its high level output is achieved by the unidirectional (Cardioid) microphone and a unique free air suspension system. With a built-in breath filter, the Sapphire can function as a pass arou