The Cisco 561 headset is specifically designed for employees in open-plan offices to stay connected and productive in any environment. It supports productivity with superior sound isolation, vivid audio, outstanding comfort and proven reliability. Due to the lightweight form factor, the headset can still be worn comfortably for a whole working day. - Incl. standard base station - Only compatible with Cisco phones - Frequency band: Europe, UK, Asia, South Africa, Hong Kong, Australia, New Zealand