You have the mouse in wired mode, but the driver expects wireless (or vice versa). Fix: The driver Dareu EM901X only fully activates when the mouse is in 2.4GHz Wireless mode . Plug the dongle in, switch the mouse to wireless, close the driver, and reopen it.
Unleash Precision: The Ultimate Guide to the Dareu EM901X Driver & Features If you’ve picked up the Dareu EM901X Wireless Gaming Mouse
The inclusion of spare feet and a USB-C cable (not Micro-USB) immediately signals that Dareu understands modern user needs. The cable is flexible, making it usable for wired mode without drag.
The EM901X is (unlike the Logitech G304 which is only 2.4GHz).
Don't settle for the out-of-box experience. Spend 10 minutes downloading the correct driver from Dareu’s support page, disable mouse acceleration in Windows, and fine-tune your DPI to your hand movement. You will immediately notice smoother tracking, more responsive clicks, and a battery that lasts twice as long with the RGB turned off via the lighting tab.