6.1 m/20 ft microphone pickup range 5-inch color LCD (720 x 1280 pixel), 9:16 aspect ratio On-screen virtual keyboard One USB 2.0 Type A-compliant port One USB 2.0 Micro-B device port for use as USB audio device and content sharing Integrated Bluetooth 5.01 Three multi-colored mute indicators and three sets of capacitive touch volume and mute buttons. Up to three lines (max. one Skype for Business) Shared call/bridged line appearance Distinctive incoming call treatment/call waiting Call timer and call waiting Call transfer, hold, divert (forward), pickup