• The USB receiver is easily situated on the top flap of the box.
• Long battery life allows you to work for extended periods of time; basic AA and AAA batteries are provided with the keyboard and mouse.
• The Logitech MK270 Wireless keyboard and mouse combo contains a full-size keyboard and a precision mouse, allowing you to operate comfortably away from your computer.
• Simple storage: The MK270 comes with a plug-and-play receiver that elegantly fits within your mouse for safekeeping.
• Programmable hotkeys to increase productivity: Access frequently used programs automatically by mapping them to the 8 available hotkeys.
• Product Dimensions (cm): 45.72 x 15.24 x 15.24

MK270 Logitech Wireless Combo The dependable wireless combination includes a small Logitech plug-and-play receiver. 
Logitech Advanced 2.4 GHz Wireless combines the dependability of a cable with wireless convenience for up to 10 meters—even in the busiest wireless environments—with almost no delays or dropouts. Because the Logitech receiver is so small, you can just plug it in and forget about it. Furthermore, the mouse has a built-in storage compartment, allowing you to take your mouse wherever you use your computer. A 24-month keyboard battery life and a 12-month mouse battery life (with auto-sleep and an on/off switch) allow you to spend years without changing batteries. And the quick, software-free setup will have you up and running on QQ, Taobao, and Baidu in no time.

Because of ambient and computer circumstances, wireless range may vary. 
Calculation of keyboard battery life based on an expected two million keystrokes per year in an office setting. The user experience may differ. The battery life of a mouse might vary depending on the user and the computer environment.