? Plug and play - This combo share a 2.4G Nano Receiver,easy and stable connection to your devices?USB the receiver is placed at the bottom of the mouse? ? Retro Keycaps - Cute round keycaps, crisp and sweet sound, perfect knocking feel, let you find the feeling of a retro typewriter ? Power Saving - Adopt intelligent power-saving chip and 3 power saving mode,the keyboard mouse set go for months without changing batteries(The combo requires 2*AA batteries, included) ? Wide Compatibility - The Keyboard and Mouse Combo Suit For Windows,Xp,Mac,macbook Vista and many systems that with usb port ? Exquisite gift box packaging - Whether it is used by yourself or as a gift to friends, lovers, children, etc, is a good choice