Brand NEW Wireless Keyboard and Mouse Combo with Wrist Rest 2.4G Ergonomic Full-Sized Silent Keyboard 3-Level DPI Adjustable Mouse Compatible for Windows/Mac/PC Black 104 keys Full-sized wireless keyboard is ergonomically designed with Palm Rest and folding holder that can keep it at an optimum slope, prevent your wrists from hurting while long sessions of typing. Keyboard is also designed with anti-slide pads so it will stay in place when you're typing quickly. Note: The USB receiver is in the battery compartment of mouse. One 2.4 GHz USB receiver can connect both the keyboard and mouse wireless, can also be used separately, plug play, no need to download any software. 2.4 GHz wireless provides a powerful and reliable connection up to 33 feet(10m) without any delays, ensuring a high-performance, stable, and convenient experience even in larger office or home environments. The wireless keyboard and mouse has the function of automatically entering the power-saving state. When you stop using the keyboard more than 10 minutes, stop using the mouse more than 2 minutes, they will enter sleep mode respectively to save power. This feature greatly extends the battery life, you can click any button to activity the device. The keyboard need 1 x AA battery, the mouse need 1 x AA battery. (Batteries are included. However, in my opinion these are low quality batteries and will not last long. These are just to get you started) The mouse has an optical design, even on some smooth surfaces, precise control can be obtained. 3-level adjustable DPI (800/1200/1600) allows you to choose your favorite moving speed of cursor. In addition, this wireless mouse is symmetry design, no matter you are Right handed Left handed, both hands are available, suitable for all people. See pictures for more item details. Trusted Seller-Fast Ship!