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Logitech Wireless Combo MK270. The reliable wireless combo with a tiny Logitech plug-and-forget receiver.
Logitech Advanced 2.4 GHz wireless delivers the reliability of a cord plus wireless convenience for up to 10 meters, with virtually no delays or dropouts—even in the busiest wireless environments. The Logitech receiver is so tiny, you can plug it in once and forget about it. Plus, the mouse features a built-in storage compartment, so you can take your mouse wherever you use your computer. A 24-month keyboard and 12-month mouse battery life—with auto-sleep and on/off switch—lets you go years without the hassle of changing batteries. And the simple software-free setup will have you on QQ, Taobao, and Baidu in no time.

Wireless range may vary due to environmental and computing conditions.
Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary. Mouse battery life may vary based on user and computing conditions.