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7. 9. 10. Fully adjustable comfort strap wrapped with leatherette cushioning to fit all sizes Recessed wiring resists prying fingers for classroom safety USB connector plug for technology-oriented applications Infrared transmitter with 15' line of sight range Replaceable foam-filled ear cushions Volume control On/off switch Noise-reducing earcups lower ambient noise so volume does not need to be as high, as recommended by audiologists Built-in wireless receivers (semi-circle considered ideal for group reception) Rugged ABS plastic headband and earcups for durability Includes a 3' USB attachment cord to extend reach from the computer to the transmitter for enhanced IR transmission Warranty for school use - unlike items purchased at a consumer electronics store whose warranty is voided if used in schools Wireless headphones remove the tethered feeling to media players and computers. This wireless stereo headphone is ideal for assistive listening with shared computers in labs, libraries, classrooms and language learning situations. It can also be used as a teaching resource in ed tech applications. The detached USB connector transmits wireless audio for functional and convenient wireless learning. "Project Intercept" Please contact us immediately if you experience any issues or questions with your headphone. Our "Project Intercept" customer service program will quickly repair or replace items under warranty. Simply contact us via phone or email rilane@califone.com. Visit our website at to learn more about the complete line of Califone® audio products including: Wired and wireless headphones: Public address systems, wireless microphone systems, group listening centers, multimedia players and computer peripheral products. We are proud oi helping teachers enhance student understanding and achievements since 1947, with your satisfaction as our first priority. This wireless headphone carries a one year warranty and service support available through authorized dealers nationwide. Specifications Headphone Transducer 40mm Mylar Diaphragm Magnet Neodymium Magnet Impedance 16 Ohms ± 15% Frequency Response 20 Hz - 20kHz Carrier Frequency 2.3 MHz Distortion <1.5% Receiving Diodes 4 Infrared Earcups Noise-reducing, Rugged ABS plastic for added durability Earpads Black leatherette Reception range Up to four users within its 5' line of sight range from transmitter Power Source 2 x 1.5 volt AAA alkaline batteries (included) Weight 12 ounces, shipping weight 1 pound 3' USB Attachment Cord Included but not shown in picture Mini CD Driver Included but not shown in picture Warranty 1 year for school, business, church and government uses Safety Approval CE rated safe for use in schools, churches and government facilities Product Compatibility All media players with a USB plug Califone® International Inc. 800-722-0500 7 35IR-USB, January 2006...