NOTE: 2 IN 1 USB RECEIVER Location of the USB receiver: The USB dongle is located next to the mouse battery compartment 2-in-1 unifying USB receiver: The keyboard and mouse are connected to the same USB receiver The keyboard and mouse are Plug and Play, no need to install any drivers Keyboard and Mouse Connection Method: 1, Open the mouse battery cover, take the USB receiver, and then plug the USB receiver into the USB port. 2, Put 1 AAA battery into the keyboard and 1 AA battery into the mouse, then you can use them freely. Product Specifications: Connection Method: 2.4GHz Working Range: Up to 10 meters / 33 ft Keyboard Layout: US QWERTY layout Number of Keyboard Keys: 104 keys Number of Shortcut Keys: 12 keys Keyboard Size: 44.3 x 13.8 x 2.5 cm?17.44 x 5.43 x 0.98 inches? Keyboard Weight: 495g?1.09 pounds? Keyboard Powered: The keyboard needs 1 AAA battery?batteries not included? Number of Mouse Keys: 3 buttons Mouse Size: 10 x 6.1 x 3.5 cm?3.93 x 2.4 x 1.38 inches? Mouse Weight: 55g?1.94 ounces? Mouse Powered: The mouse needs 1 AA battery ?batteries not included? Package including: 1 * Wireless Keyboard 1 * Wireless Mouse 1 * USB Receiver If you have any questions, please contact us, we hope to provide you with good products and good services until you are satisfied. We provide one year warranty service, so you do not have any risk. If you are not satisfied with our products, we can replace you with a brand new product or a full refund to you.