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.

FrSky Compact XSR-SIM USB Dongle supports most simulators which have no hardware encrypted.

FrSky Wireless USB Dongle SPECIFICATIONS

Size: 48.2*19.1*9.2mm (L*W*H)
Weight: 6.2g

FrSky Wireless USB Dongle FEATURES

Compact design
Low power requirements: typically 55mA
Compatible with FrSky transmitters and module systems (Mode D16)
Compatible with popular simulators (DRL, LiftOff, Freerider, HotProps, etc.)
8 proportional channel and 8 switch channel output (set on the transmitter side)
Firmware upgradable (through the S.Port)

FrSky Wireless USB Dongle Inside Box:

1 x XSR-SIM
1 x Manual

From: https://www.horusrc.com/en/frsky-xsr-sim.html