Low power requirements: typically 55mACompatible with for 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) No additional drivers or additional software required for PC The for FrSky Wireless USB Dongle For Simulator allows you to wirelessly connect your for 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.for FrSky Compact XSR-SIM USB Dongle supports most simulators which have no hardware encrypted.Colour:BlackMaterial:plastic Package Contents:1 x Wireless Simulator USB Dongle Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.