Specification: Type: Wireless Adapter Model Number: USB Dongle Receiver Name: USB Adapter Color: White Material: Plastic Function: Plug this product into your computer and the necessary drivers will install automatically so you can pair your controller with the SteamVR app. Size: About 60x16x10mm/2.36x0.62x0.39inch Weight: 8g Applicable Model: For Valve Index Controllers For HTC Vive Tracker For HTC Vive Controllers For compatible with Logitech VR Ink Pilot Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x USB Dongle Receiver 1. Compatibility: Our USB adapter is designed to pair with a variety of PC VR setups, including for Valve Index Controllers, for HTC Vive Tracking Devices, for HTC Vive Controllers, for compatible with Logitech VR Ink Pilot, and for N7R Tracking Device. Please note that it's not compatible with REVVL 4 PLUS. 2. Small & Portable: The USB dongle receiver is small and lightweight, making it easy to carry with you on-the-go. This allows you to take your VR setup wherever you go, without having to worry about bulky equipment. 3. Plug-and-Play: The wireless receiver adapter is easy to use - simply plug it into your computer, and the necessary drivers will automatically install. This makes it quick and easy to pair your controllers with SteamVR applications. 4. Pre-Flashed Firmware: The USB adapter dongle comes pre-flashed with watchman firmware, which provides similar functionality to Steam controllers or for HTC Vive tracking device dongles. This ensures that you get reliable and consistent performance from your VR setup.