1、Compatibility: The wireless receiver is used to pair the following devices with PC VR Settings, fit for Valve Index controller, for HTC Vive tracker, for HTC Vive Controller, for Logitech VR Ink Pilot, for N7R tracker (not available for REVVL 4 PLUS) 2、Plug and Play: Just insert into your computer and the necessary drivers will automatically install so you can pair your controllers using for SteamVR app. 3、Firmware: Designed with preflashed for Overwatch firmware, these dongles function like those compatible with Steam controllers for HTC Vive tracking devices. 4、Portable: This USB dongle receiver is compact and lightweight, so you can easily take it with you and use it outdoors. 5、Extension Cable: The USB extension cable provides additional flexibility in setup, offering enhanced convenience for users based on their spatial needs. 2 x VR USB Dongle Receiver  2 x Extension Cables Item Type:  VR USB Dongle ReceiverMaterial: ABSInterface: USBThe VR Dongle is used to pair the following devices with your PC VR Settings:Fit for Valve Index controller, for HTC Vive tracker, for HTC Vive Controller, for Logitech VR Ink Pilot, for N7R tracker (not available for REVVL 4 PLUS)Features:  USB Dongle wireless receiver, used to pair your PC with VR compatible devices, allowing you to use for HP Reverb G2 headphones and for Valve Index controllersFirmware: come pre flashed with for Overwatch firmware