Due to manufacturer's restrictions this item cannot be shipped outside of the United States.The ADN-W C2 Wireless Chairperson Unit and 11.4" Gooseneck with ME36 Hypercardioid Capsule by Sennheiser is for controlling delegate units in conference meetings. It is used in applications such as video conferencing, meeting rooms, boardrooms and more. It features 128-bit AES encryption and provides interference-free transmission in the 2.4 GHz and 5 GHz bands. Built with a microphone key that functions either as an On/Off switch or as a Request-to-speak button. A Next key to grant speaking privileges and a Priority key to deactivate all active conference units is also provided.