A telephone headset performs the functions of a telephone handset, but it's worn on your head rather than held in your hand. If you are on the telephone for a long time, or you need your hands for other tasks while speaking, a headset is a good way to enhance your productivity and comfort. A headset allows you to work efficiently and comfortably - you can concentrate on the conversation and on the things in front of you, and forget about the telephone.
Snom headsets are tested specifically for use with the Snom telephones, and they are designed for good wearing comfort. The microphone is noise-cancelling so there is no compromise on voice quality.