Work for longer with long battery life: Basic batteries are included with the keyboard and mouse Keyboard and mouse combo: The Wireless Keyboard and Mouse Combo includes a full size keyboard and a precision mouse so you can work comfortably away from your computer Easy storage: includes a plug and forget receiver that cleverly stores inside your mouse for safekeeping. Drop out connectivity: The 2.4 G signal ensures you have a strong and reliable connection, so you will never have to suffer through dropouts