I was having a problem with my Shokz OpenComm2 headphones that when turning them on, Linux Mint would immediately prompt for shutdown/suspend.

Here is how I fixed it. I am using Shokz OpenComm2 with the Loop 120 USB A adapter.

• Get the Vendor ID and Product ID. With the device turned on, run lsusb. Look for the following:

  Bus 003 Device 007: ID 3511:2ef2 Shokz Loop120 by Shokz

• Create a file at /etc/udev/rules.d/10-shokz-fix.rules with the following contents. You will need to use sudo to create this file.

  # Rule to prevent Shokz headphones from triggering standby/sleep
  SUBSYSTEM=="usb", ATTRS{idVendor}=="3511", ATTRS{idProduct}=="2ef2", DRIVER=="usbhid", ATTR{authorized}="0"

  Replace the idVendor and idProduct with the corresponding values from lsusb if necessary
• Reload the udev rules

  sudo udevadm control --reload-rules

Unplug and plug-in the adapter to reapply the rules to the active device.