Sandberg USB Office Headset Pro Mono - outstanding quality and can be used for, e.g. your home office, workplace or studying. The microphone is on a flexible arm, which ensures that the other person can hear you clearly. A speaker in one ear provides you with clear sound reproduction, while the other ear is free to hear what's going on around you. The discreet lightweight construction with a soft ear pad and adjustable headband provides you with optimal comfort. Built-in max. volume of 118 db to avoid damage to your hearing. Connects through a USB port and works immediately. Inline volume control Cable length: 2.1 metres Connector: 1 x USB A Male plug Earphone Driver unit: 30 mm Frequency range: 20 Hz 7 kHz Više informacija na linku