To connect your Logitech keyboard K345, you must use the included USB receiver, as the keyboard does not support Bluetooth. This guide provides the exact steps to establish a reliable wireless connection between your keyboard and computer.
How to connect your Logitech keyboard K345
The Logitech K345 keyboard is typically part of the Logitech MK345 Wireless Keyboard and Mouse Combo. It connects wirelessly via a USB receiver only, not Bluetooth. Inside the box, you will find the keyboard, the USB receiver, and two AAA batteries (though batteries may be packaged separately depending on the kit).
Step 1: Install the batteries
- Locate the battery compartment on the back of the keyboard.
- Slide the cover open to access the compartment.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) ends align with the markings inside the compartment.
- If a plastic battery tab is present, pull it out completely to allow the batteries to make contact.
- Close the battery compartment securely.
Step 2: Plug in the Unifying receiver
- Take the Logitech Unifying receiver from the box.
- Plug the receiver directly into a USB port on your computer. Avoid using a USB hub, as this can interfere with the connection.
- Allow your computer to automatically detect and install the necessary drivers. No manual software installation is required for basic functionality.
Step 3: Turn on and connect the keyboard
- Locate the power switch on the keyboard and slide it to the "On" position.
- The keyboard and receiver should pair automatically. If they do not connect, press the connect button on the receiver, then press and hold the connect button on the bottom of the keyboard until the receiver's indicator light stops blinking and remains solid.
Troubleshooting connection problems
If your keyboard is not responding, follow these checks in order:
- Check that your keyboard is powered on by confirming the power switch is set to "On".
- Check that you have pulled the battery tab out of your keyboard if it was present.
- Check the orientation of the batteries in the keyboard and ensure they are inserted with correct polarity.
- Check that the receiver is securely plugged into a USB port on your computer.
- If the receiver is plugged into a USB hub, try plugging it directly into your computer.
- Remove any metallic objects between the receiver and your keyboard, as these can interfere with the wireless connection.
- Try plugging the receiver into a different USB port, ideally one closer to your keyboard.
Using your Logitech K345 keyboard
Once connected, the keyboard features user-friendly enhanced F-keys that allow you to launch applications easily by pressing and holding the FN key, then pressing the desired F-key. For further customization, the F1, F2, and F4 keys can be reprogrammed using Logitech SetPoint software. The keyboard uses two AAA batteries with an estimated battery life of 36 months, so you can expect long-lasting performance before needing a replacement. To connect keyboard functions to your preferred shortcuts, simply install Logitech SetPoint and assign new actions to those programmable keys.

















