Almost all our rooms with a capacity of over 20, and rooms smaller than that, allow for a HDMI cabled connection from the laptop to the projector. It's as simple as plugging in the flying HDMI lead and selecting 'laptop' on the AV-control touchscreen. The HDMI connection carries both audio and video. Older-equipped rooms have a similar VGA facility. With VGA a separate 3.5mm audio jack lead must be connected to the laptop's loudspeaker outlet.
Many high-end laptops (including most Apples) do not have a HDMI out port, preferring instead to use the new USB-C or Thunderbolt socket. If you have a laptop without a HDMI connector you must bring a converter or docking station to give the laptop an HDMI-out connection. These cost between £70 and £300 and are not supplied by LRAT.
Many laptops have 4k (3840 x 2160) resolution screens but we don't project at that resolution, as text would be unreadably small from the back of the room. We project instead at 720p (1280 x 720). Although the scaler will try to downsize your content to 720p, scalers may fail with very high resolution. It is best to adjust your laptop screen to 1280 x 720 before projecting.
Some rooms are equipped with a wireless connection product, ViVi.