Cisco CP-HS-WL-562-M-EU=, Cisco 562 Wireless Dual Headset Multi, Operating Distance 100m, Use Phone, computer, conference, Wireless DECT 6.0, Sound Output Mode Stereo, Audio Frequency Response 50 - 18000 Hz, Impedance 90 Ohm, Microphone Boom, Electret condenser. The Cisco 562 is a professional wireless headset which is optimized for Cisco IP phones and soft clients. The Cisco 562 delivers a surprisingly vibrant sound for open workspaces. Users can stay focused in noisy environments with rich sound.