Enjoy all the benefits of hands-free mobility plus the convenience of connecting to both traditional and PC-based telephones with a lightweight, ergonomic headset that offers superior sound and style. DSP and IntelliTone technologies ensure superb sound quality and greater hearing protection. Wideband audio offers twice the frequency response of traditional telephony for sound so clear and real it feels like a face-to-face conversation. Sophisticated, on-base LCD makes it easy to set personal sound preferences. Multi-unit conferencing feature allows up to four headsets to dock with one base for a conference call. Multiple wearing styles suit any individual's preference for added comfort. Headset Type: Monaural; Headset Style: Convertible; Earpiece Type: Earloop; Earpiece Material: Plastic.