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 design brings realistic mechanical feel, low noise, easy to . Fn+F1~F12 multimedia keys can support play/pause, +/- and other common shortcut functions. Ergonomic design, equipped with adjustable bracket to make wrist in a relaxed angle, not only ensures flexibility of fingers, but also gives consideration to clarity of angle of view, not easy to fatigue after long-term use. Support one USB receiver to control keyboard and simultaneously, no driver required, plug and play. Specification: Brand: Color: Black/Pink/Blue/Green/Light Brown/Purple(optional) Connection method: 2.4G wireless connection Button number: 104 keys(keyboard), 5 keys() Battery: 1*AA battery for keyboard(not included), 1*AA battery for (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 size: 10.1 * 7.5 * 3.4cm /3.98 * 2.95 * 1.34in weight: Approx. 85g /3oz Packing list: 1 * Keyboard 1 * 1 * User manual 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 design brings realistic mechanical feel, low noise, easy to . Fn+F1~F12 multimedia keys can support play/pause, +/- and other common shortcut functions. Ergonomic design, equipped with adjustable bracket to make wrist in a relaxed angle, not only ensures flexibility of fingers, but also gives consideration to clarity of angle of view, not easy to fatigue after long-term use