The FrSky Wireless USB Dongle For Simulator allows you to wirelessly connect your FrSky transmitter to computer to use simulator.
Just install the pre-loaded HID driver to your PC (Mac users will need to download the correct HID drivers).
Then bind your transmitter to it, now you can move freely while using a simulator.
Brand Name: Frsky
Item Name: USB Dongle Wireless Simulation
Application: for Frsky Radio Transmitter
Compatibilty: compatible for DRL, LiftOff, Freerider, HotProps, etc.
Size: 48.2*19.1*9.2mm (L*W*H)
1x Frsky XSR-SIM Simulator