For 2.4G mode (please make sure the mouse is currently in 2.4G mode):

• Press and hold the middle scroll button and the left and right click buttons simultaneously for 5 seconds until the 2.4G wireless indicator light flashes.
• Insert the 2.4G USB receiver into your device, and the mouse will connect to your device automatically.

2. For Bluetooth mode:

• Turn off the mouse.
• Press and hold the middle scroll button and the right-click button simultaneously while turning on the mouse. The Bluetooth channel 1 indicator light will flash quickly.
• Connect the mouse to your device via Bluetooth.

1. Ensure the mouse is fully charged before use.
2. Confirm that the mouse is in the correct mode by checking if the corresponding connection channel light is flashing.
3. If you are using the USB dongle to connect the mouse:
   • Unplug and replug the USB dongle into your device.
   • Try using a different USB port on your device.

   If you are using Bluetooth to connect the mouse:

   • ● Delete the mouse Bluetooth pairing from your device's Bluetooth listing.
   • ● Restart your device.
   • ● Repair the mouse with your device by following the pairing instructions.
4. 1. Attempt to connect the mouse to other devices to determine if the issue persists.

If the problem continues, please refer to the re-pairing and resetting Bluetooth steps mentioned earlier to re-pair the mouse with the USB dongle and reset the mouse's Bluetooth connection.

1. 1. Ensure that the mouse is fully charged before proceeding with any troubleshooting steps.
2. 1. Refer to the instructions provided earlier for re-pairing the mouse with the USB dongle and resetting the mouse's Bluetooth connection.

1. Restart your computer and reconnect the mouse to your computer.
2. Try wiping the scroll wheel with a small amount of alcohol and use a hair dryer to blow out any foreign objects that may be affecting its performance.
3. Ensure that the mouse is fully charged, as a low battery can impact the mouse's functionality.
4. If the problem persists, try connecting the mouse to other devices to determine if the issue is device-specific.

If you have lost or misplaced the USB dongle/receiver for the EM13 mouse, you can purchase a universal USB dongle/receiver from our official website. Please visit the following link:https://www.protoarc.com/collections/all-products/products/usb-receiver

Before using the new USB dongle/receiver, it is important to re-pair the mouse and keyboard with the new dongle/receiver. Follow the steps below:

1. Press the middle scroll button and the left and right click buttons at the same time for 5 seconds until the 2.4G indicator (Channel Indicator 1) light flashes.
2. Insert the new 2.4G USB receiver into your device, and the mouse will automatically re-pair with the new dongle/receiver.

It's important to complete the re-pairing process to establish a connection between the EM11 mouse and the new USB dongle/receiver.