This Logitech K850 keyboard connects by Bluetooth only (no USB dongle, no mouse included). How to connect: 1. Put batteries in and turn the keyboard ON. 2. Press and hold 1, 2, or 3 for 3–5 seconds until the light blinks. 3. On your computer, open Bluetooth settings, choose Add device, and select “Logitech K850”. 4. If it shows a pairing code, type it on the keyboard and press Enter. That’s it.
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