Logitech Zone Wired 2 for Business Headphone UC Graphite 55 inch digital signage Depth without Handle 650 MMGH883 SS883 + MMSI900LEDHS 2 Depth without Handle 650 The kit supports 128 bit AES encryption for secure data transmission and includes two Gigabit Ethernet ports per unit Reversible Driver Size 40 mm Speaker Frequency Response 20 Hz – 20 kHz Speaker Sensitivity 97 dB ±3 dB @ 1 kHz Impedance 36 Ohm Active Noise Cancellation Adaptive hybrid active noise cancellation (5 modes including Transparency) Microphone Type Dual noise cancelling microphones with AI algorithm and Mic EQ Microphone Frequency Response 100 Hz – 8 kHz Microphone Boom 270° rotatable The Logitech Zone Wired 2 for Business UC is a wired on ear headset engineered for open plan offices