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About K400 Plus

Wireless Touch Keyboard K400 Plus is a full size keyboard layout and touchpad in a
compact size.
Incurve keys are ideal for touch typists and the soft key stroke makes this a quiet
keyboard.
The full size touchpad gives you the familiar scroll and navigation gestures. With the
left- and right-click buttons below the touchpad and the volume control buttons above,
control is at your fingertips.
For two-hand control, typically used by those who like to use their thumbs to navigate, a
left mouse-click button is located on the upper left side of the keyboard—navigate with
your right hand, select with your left.
Left mouse-click button
Shortcut and function keys
Volume control
Touchpad
Left and right mouse-click
buttons

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Questions and answers

Bob
February 10, 2025

How do you pair this keyboard

1 comments:
Mr. Anderson
February 11, 2025

To pair the Logitech K400 Plus keyboard:

1. Insert Batteries: Open the battery compartment, insert two AA batteries, and ensure the polarity matches the symbols inside.
2. Power On: Use the switch on the top right edge to turn on the keyboard. A green LED will light up.
3. Connect via Unifying Receiver (Default Method): Plug the Unifying Receiver into a USB port on your computer.
4. Enable Bluetooth Mode (If Not Using Receiver): The K400 Plus primarily uses the Unifying Receiver, so Bluetooth pairing may require manually enabling Bluetooth mode by holding specific keys.

This answer is automatically generated

Stephen Cornell Whitmore
April 22, 2025

What is the yellow button upper left corner for?

1 comments:
Spinto
April 22, 2025

@Stephen Cornell Whitmore This is an additional left mouse button for easier using the touchpad.

Stephen Cornell Whitmore
April 22, 2025

Is there a setting to allow the touch pad to move cursor AND with pressure on the touch pad make an entry - instead of having to press the left button below the touch pad?

Summary of Contents for Logitech K400 Plus

  • Page 1 About K400 Plus Wireless Touch Keyboard K400 Plus is a full size keyboard layout and touchpad in a compact size. Incurve keys are ideal for touch typists and the soft key stroke makes this a quiet keyboard. The full size touchpad gives you the familiar scroll and navigation gestures. With the left- and right-click buttons below the touchpad and the volume control buttons above, control is at your fingertips.
  • Page 2 Connect Step 1: Insert the Unifying receiver into a USB port on your computer.
  • Page 3 Step 2: Pull to remove the yellow battery tab.
  • Page 4 Note: Make sure that your keyboard switch is in the ON position. The ON/OFF switch is located at the top of the keyboard. Your keyboard is ready to use. Shortcut Keys Shortcut and function keys streamline navigation, media control and keyboard functions. Shortcut/Function Back Home...
  • Page 5 Search Show/hide desktop Maximise window Switch screen Media...
  • Page 6 Previous track Play/Pause Next track Mute Volume down Volume up Fn + ins: PC sleep...
  • Page 7 Fn + backspace: Print screen Fn + caps lock: Scroll lock Fn + left arrow:Home Fn + right arrow:End...
  • Page 8 Fn + up arrow:Page up Fn + down arrow:Page down F1-F12 keys: To activate F1, simply press on Fn+ back...
  • Page 9 K400 Plus Extras TOUCH TAP Press the Fn key and the left mouse button to toggle between touch tap disable and enabled. You can also press the left mouse click button at the top-left of the keyboard to perform a click or comfortable two-handed navigation.
  • Page 10 When you are not using K400 Plus, store the Receiver in the battery compartment so that you never lose it. Logitech Options K400 Plus is a plug and play keyboard loaded with features right out of the box. If you like customization and loads of feature, then Logitech Options software was designed for you.
  • Page 11 Unifying wireless lets you add up to six Unifying ready devices to one tiny receiver. Learn more about Unifying REPLACE BATTERIES K400 Plus is a plug and play keyboard designed for easy use and long life. However, if you encounter any issues or have questions about your product, Logitech is here to help.

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