The EM-G20 is designed to help with serving food and other pleasantries. The Tray uses compact anti-grav modules integrated in the bottom. These provide hover only. The tray has no propulsion of its own, so if it is moving when released, it will continue. If stationary it will stay unless bumped into. The EM-G20 comes in a variety of sizes for different uses.
The tray has rechargeable power cells that can be charged by placing in a docking station, or by induction. With out recharging the trays have a two hour operating time.
Article by Nashoba. Illustration by Wes using Midjourney (Commercial license).