Wireless Powered Learning Center (3432IR-PLC): Califone.www.califone.com, Hardware, $255 This portable wireless listening center uses patented infrared An invisible band of radiation at the lower end of the visible light spectrum. With wavelengths from 750 nm to 1 mm, infrared starts at the end of the microwave spectrum and ends at the beginning of visible light. technology to deliver a full range of high fidelity high fidelity n. The electronic reproduction of sound, especially from broadcast or recorded sources, with minimal distortion. high audio from up to 15 feet away. It can adapt to use with larger groups because the technology allows for more listeners than a traditional wired listening center that accommodates four or eight students. Califone has also introduced the 4100-USB headset Headphones combined with a microphone. Used in call centers and by people in telephone-intensive jobs, headsets provide the equivalent functionality of a telephone handset with hands-free operation. Many people use headsets at the computer so they can converse and type comfortably. ($40), which features reinforced connectors, an adjustable headband and foam-filled replaceable ear cushions. An attached boom microphone microphone, device for converting sound into electrical energy, used in radio broadcasting, recording, and sound amplifying systems. Its basic component is a diaphragm that responds to the pressure or particle velocity of sound waves. offers additional versatility for spoken word and language applications. CIRCLE #522 FOR INFORMATION [ILLUSTRATION OMITTED] |
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