Features: 2.4GHz wireless transmission technology provides continuous and stable signal transmission, can reduce signal interference. Full-size 104 keys keyboard, equipped with conventional keyboard, numeric keyboard and directional keys, compact layout, makes your operation more convenient. Retro typewriter style, high key cap design brings realistic mechanical feel, low noise, easy to clean. Fn+F1~F12 multimedia keys can support play/pause, volume+/- and other common shortcut functions. Supports one USB receiver to control the keyboard and mouse simultaneously, no driver required, plug and play. Specification: Brand: Eacam Color: Black/Pink/Blue/Green(optional) Connection method: 2.4G wireless connection Button number: 104 keys(keyboard), 5 keys(mouse) Battery: 1*AA battery for keyboard(not included), 1*AA battery for mouse(not included) Compatible OS: Windows XP/Win7/Win8/Win10 Keyboard size: 44.5 * 13.6 * 3.5cm /17.52 * 5.35 * 1.38in Keyboard weight: Approx. 660g /23.28oz Mouse size: 10.1 * 7.5 * 3.4cm /3.98 * 2.95 * 1.34in Mouse weight: Approx. 85g /3oz Packing list: 1 * Keyboard 1 * Mouse 1 * USB recieiver 1 * User manual