Feature: 1. [Retro Circular Keycap] 2.4G wireless keyboard and mouse set, retro circular keycap, long distance transmission, multimedia shortcut keys, long lasting power, plug and play. 2. [Smart Power Saving] Smart power saving, automatic power saving technology, low battery reminder. A USB receiver drives the keyboard and mouse at the same time, easy to operate without driving, plug and play. 3. [Wireless Technology] Wireless technology, 2.4G wireless technology can be used within a range of about 10 meters in 360° to meet your needs. 4. [Fully Compatible] Widely compatible with a variety of digital products with USB interface. Desktop, notebook, all in one, tablet and smart television, etc. For win7, for win8, for win10 universal. 5. [Scientific Design] Scientific design, reasonable use of keycap layout space, save 55mm space than traditional keyboards, and save more space for your desktop. Specification: Item Type: Keyboard Mouse Combo Material: ABS Model: For Candy XR Support System: For win7, for win8, for win10 Number of Mouse Buttons: 4 Buttons Number of Keyboard Keys: 100 Keys Keyboard Size: Length Approx. 390mm / 15.4in, Width Approx. 135mm / 5.3in ,High Approx. 36±2mm / 1.4±0.1in Mouse Size: Length Approx. 99mm / 3.9in, Width Approx.71mm / 2.8in, Height Approx. 38±2mm / 1.5±0.1in Effective Distance: Approx. 10meters / 10.9yd Batteries: 2 x AAA Batteries for the Keyboard and 1 x AA Battery for the Mouse, Shipped Without Batteries. Package List: 1 x Mouse1 x Keyboard1 x User Manual1 x Receiver1 x Cartoon Paper (Random Pattern) Note: Shipped Without Batteries