LENOVO Go Wired Speakerphone 80008028 4XD1C82055 Product Description: Lenovo Go - speakerphone Product Type: Speakerphone - wired - USB-C Recommended Use: Conference Additional Functions: Automatic Gain Control (AGC) Colour: Storm grey, thunder black Connectivity Technology: Wired Audio Specifications: Frequency Response 140 - 20000 Hz - Sensitivity 85 dB Impedance: 4 Ohm Signal-To-Noise Ratio: 64 dB Microphone Operation Mode: Omni-directional x 2 Controls: Mute, volume, answer/end, Microsoft Teams button Software Certification: Certified for Microsoft Teams Manufacturer Warranty: 1-year warranty