FrSky CNC Metal Tray for Tandem X20 / X20S.
Transmitter trays are great for relieving the neck fatigue associated with using transmitter neck straps. The tray provides rests for the hands, reducing arm fatigue and allowing greater precision on the sticks. The weight of the radio and your hands / arms is now carried on your shoulders rather than the neck; far more comfortably than a neck strap can. Great for pilots who fly hours on end.