?Durability Battery Life?Both keyboard and mouse turn into Power-save mode automatically,click any key or button to wake-up within seconds. Each of them runs on one AAA battery and AA battery (Included). Low battery indication shows in the top right corner, when the battery is dying,the keyboard's low battery indication light will remind you to replace the battery. ?2.4GHz Dropout-Free Connection Connection&Plug and play?2.4GHz signal delivers up to a range of 28 feet connection that allows you to work with your PC from a distance. One small Nano receiver (USB 2.0) connects both the mouse and keyboard without installing any additional software, high speed rate of return allows the combo to ensure their stable and smooth transmission without delay and frame skip, hence to enhance your typing experience. ?Mini Optical 3 DPI Adjustable Wireless Mouse?The mini Optical mouse is with modern ergonomic design, DPI adjustable(800-1200-1600), 3 level power saving mode for the mouse. ?Cute Mini Keyboard with Convenient Cute Round Hotkeys?22 shortcut keys to easily manage your media, shortcuts for emails, screen control, internet, and search function. The combo supports Windows 7, Windows 8 , Windows 10, Window XP, PC and Mac. ? Wireless Keyboard Mouse Combo? Includes Cute Quite Wireless Keyboard with 110 Quiet and Comfortable Keys and Wireless Mice. Keyboard Dimensions: 445 x 136 x 30 mm; Mouse Dimensions: 99 x 71 x 38 mm. The design help you save more place in your office or home.