https://www.asus.com.cn/support/faq/1050878/
This link is about the official website instructions for Omni receivers. The Omni receiver is compatible with the following models, but some models require firmware updates before pairing through Armory Crate

Please refer to the following list of compatible devices:

Mouse:
• ROG Harpe Ace Aim Lab Edition  
To unlock the Omni receiver feature on the ROG Harpe Ace (black version), be sure to download the firmware through this link to update: https://rog.asus.com.cn/mice-mouse-pads/mice/wireless/rog-harpe-ace-aim-lab-edition-model/helpdesk_bios/
• ROG Strix Impact III Wireless
• ROG Keris II Ace
• ROG Harpe Ace Extreme
• ROG Harpe Ace Mini
• ROG Keris Wireless AimPoint 
To unlock the Omni receiver feature on ROG Keris Wireless AimPoint, please be sure to download the firmware through this link to update: https://rog.asus.com.cn/mice-mouse-pads/mice/ergonomic-right-handed/rog-keris-wireless-aimpoint-model/helpdesk_bios/
ROG Keris II Origin
ROG Gladius III Wireless Aimpoint
ROG Gladius III Aimpoint EVA02

Keyboard:
ROG Strix Scope II 96 Wireless 
To unlock the Omni receiver feature on ROG Strix Scope II 96 Wireless, be sure to download the firmware through this link to update: https://rog.asus.com.cn/keyboards/keyboards/compact/rog-strix-scope-ii-96-wireless/helpdesk_bios/
To unlock the Omni receiver feature on ROG Azoth, be sure to download the firmware through this link to update: https://rog.asus.com.cn/keyboards/keyboards/aura-rgb/rog-azoth-model/helpdesk_bios/
ROG Falchion RX Low Profile
ROG Azoth Extreme
ROG Strix Scope II 96 RX Wireless
ROG AZOTH X

Omni Receiver pairing and demodulation methods with devices:
1. Open Armory Crate and confirm if all components and firmware versions have been updated to the latest version.
2. Connect the Omni Receiver compatible with the device to the USB interface of the computer, confirm that the device has been switched to 2.4GHz RF mode, and click to open the ROG Omni Receiver page.   
Then pair according to the software's prompts.


If you don't know how to pair,please ask customer service!
Package Include:
1 X USB Receiver