First doublecheck the batteries, then connect the receiver to the computer, and wait until Windows recognizes it and installs the built-in driver.

This might take a few moments. After which a pop-up screen is shown with "Device Setup > Installing device".

When this screen has disappeared the installation is finished and the product is ready for use.

The keys have a special function defined by the operating system. Whether these keys can be changed depends on your computer and operating system. We would advise to consult your computer's manual for more information.

By pressing the DPI-button you will change the DPI.

There is no visual indication for the DPI selection, other than that the pointer speed on the screen will be faster or slower, depending on the DPI that is selected.

No, these are fixed functions. They operate with the default program that is set on the computer for that function.

Follow the steps in the mouse settings page

• Mouse arrow/cursor speed can be adjusted by clicking the DPI switch on the topside of the mouse.
• Alternatively, follow the steps in the mouse settings page

It's not possible to provide a replacement receiver for this product.
This is due to the fact that during production the product and receiver receive a unique code, so the product can only communicate with the bundled original receiver.

Set the correct language as explained in the keyboard settings page

• Clean your keyboard from dust and crumbles.
• If you are using it with a TV, make sure that your TV and/or the app, supports all symbols and characters of the keyboard.
• Improve wireless performance.
  See wireless troubleshooting page

• For best compatibility, use Windows Mediaplayer and Internet Explorer.
• Ensure that the Multimedia program you wish to control is selected as Default in the system properties.
• If still not working, uninstall any other programs/drivers related to keyboards.

• Try using the mouse on a different surface or use a mousepad.
• Clean the sensor on the bottom of the mouse with a dry cloth.
• Improve wireless performance. See wireless troubleshooting page

Please follow the installation trouble shooting guide.

Unfortunately, we do not have service centers to repair products.
A defective product should be replaced by your point of purchase during the warranty period.

Follow the steps in the trouble shooting guide.

We offer a 'return to retailer' warranty on our products. In case of a defect, you can return the product to your retailer with failure description, proof of purchase and all accessories. During the warranty period you will receive a replacement product from the retailer if available. For full warranty conditions you can consult: https://www.trust.com/support/warranty

This keyboard doesn't have caps-lock, num-lock and scroll-lock indicators. It has an indicator for low battery.