The GN 4170 replaces existing telephones with a sleek, space-saving phone and headset system. With a choice of headset wearing styles, either an adjustable headband or moldable earwrap, you can select the style that is most comfortable for you. Developed for busy office professionals, the GN 4170 is stylishly designed for easy use. This multi-use phone helps keep your desk free of clutter with its small size and accessible headset stand that keeps your headset within quick reach.Stay connected with the GN 4170's fax/data port that allows you to transfer data from a fax or computer modem across a single phone line. A redial button and programmable memory features also keep the numbers you need right at your fingertips. The noise-filtering microphone reduces unwanted background noise and provides superior sound clarity. Tone control lets you adjust the headset's tonal quality to your preference. The versatile 2.5 mm headset connection delivers added value when used with headset-ready cordless and mobile phones.