Screen: 55", 4K (3840×2160), 50/60 Hz, HDR, VA panel, not curved (ek) (devicebeast)
Smart TV: Android TV 9, with Chromecast built in and a voice remote (itc)
Connectivity: 4 HDMI and 3 USB ports, plus Bluetooth and an Ethernet port. Wi-Fi is also built in. (e-catalog) (tvsfaq)
Tuner: DVB-T/T2 (kitele)
Audio: 30 W total, with Harman Kardon tuning (kitele)
Power: your label shows 110/145/180 W (eco/std/max). Standby is 0.5 W. (videotesty)
Wall mount: VESA 400×200 mm
