Full-Size Silent keyboard with Round Keycaps Adopts noise reduction keys, a square mechanism under each key improved stability, quick rebound and no delay. The retro round concave keycap matches the shape of your fingertips, and it is comfortable to press, just like typing on an old-fashioned typewriter, and your hands will not feel tired during long-term office work 2.4GHz Wireless TechnologyPlug and play, 35 feet working range, 2-in-1 nano receiver, no need to install other software, no delays or Drop the line, Make your desk surface more neat and tidy, Keyboard or mouse can be used separately, just insert a single USB Receiver to use your Wireless Keyboard Mouse Combo Ergonomic DesignWireless keyboard is ergonomically designed with folding holder and anti-slide pads that can keep it at an optimum slope, prevent your wrists from hurting while long sessions of typing Wide CompatibleWith this retro wireless keyboard and mouse combo , you will find it is very convenient to type message or edict document by this portable keyboard on your cellphones or PC,Destop, Laptop,Computer and more Auto Power-Saving Function When you stop using the keyboard for more than 5 minutes, the keyboard will enter sleep mode. Press any key to activate the device. (Note: 2 piece AAA battery is required for the keyboard and 1 piece AA battery for the mouse. (Battery included)