display type: oledresolution: 4k (2160p)screen size: 55incheshigh dynamic range (hdr): yesrefresh rate: 120hzsmart platform: google tvnumber of hdmi inputs (total): 4works with: amazon alexa, google assistantvoice assistant built-in: amazon alexa, google assistantremote control type: voice controlnumber of hdmi hdcp 2.2 inputs: 4hdmi audio return channel (arc): yesnumber of usb port(s) (total): 2number of usb 2.0 ports: 2ethernet port(s): yesrf antenna input: yesbluetooth enabled: yesbluetooth version: 4.2network compatibility: built-in wi-fi, ethernetnumber of rs-232 inputs: 1number of digital optical audio outputs: 1number of composite video inputs: 1vesa mounted: yescolour: black