1. Product Overview¤EXPERIENCE CRYSTAL CLEAR COMMUNICATION PI DATE SEPTEMBER 2006(NZ)¤ PRODUCT TYPE: Headset PRODUCT DECRIPTION Binaural Noise Cancelling¤Headset COMPATIBILITY: Standard desk telephones. * Large dual ear¤cushion provides exceptional comfort * PeakStop Technology cuts off¤sudden loud noises above 118 dB SPL * Solid Construction and impact¤resistant materials * Acoustical shock protection - Protection against¤sudden, overly-loud sounds emanating from the telephone network