The M350s connects through Bluetooth, not a USB receiver

The Logitech M350s is a wireless keyboard that pairs directly with your device over Bluetooth — it does not come with a USB dongle or receiver. This means you can use it with phones, tablets, laptops, and desktop computers that have Bluetooth built in. The pairing process takes a few minutes the first time, and after that the keyboard reconnects automatically whenever it is in range and powered on.

Before you start, make sure your device's Bluetooth is turned on and that the M350s has fresh batteries installed. The keyboard uses two AAA batteries, which you insert into the battery compartment on the back. A small LED light on the top of the keyboard shows whether it is powered and connected.

Key Takeaways

  • The M350s pairs over Bluetooth directly to your device — no USB receiver needed or included.
  • Insert two AAA batteries into the back of the keyboard and turn on the power switch before pairing.
  • Hold the Bluetooth pairing button on the back of the keyboard for three seconds until the LED blinks, then select the keyboard from your device's Bluetooth settings.
  • Once paired, the keyboard reconnects automatically when you turn it on and your device's Bluetooth is active.
  • If the keyboard does not appear in your Bluetooth list, restart both the keyboard and your device, then try pairing again.

Prepare the keyboard and your device

Open the battery compartment on the back of the M350s by sliding the cover downward. Insert two AAA batteries with the positive ends facing toward the spring contacts. Slide the battery cover back up until it clicks into place. Flip the power switch on the back of the keyboard to the On position — you should see a white LED light appear on the top of the keyboard.

On your device, go to the Bluetooth settings. On Windows, this is usually in Settings > Devices > Bluetooth & other devices. On Mac, go to System Preferences > Bluetooth. On Android, open Settings > Connected devices > Bluetooth. On iPad or iPhone, go to Settings > Bluetooth. Make sure Bluetooth is toggled On. Your device should show "Searching for devices" or similar language, or you may need to click a button to start searching.

Put the keyboard into pairing mode

Locate the small Bluetooth pairing button on the back of the M350s keyboard, near the battery compartment. It is usually a small circular button marked with a Bluetooth symbol. Press and hold this button for about three seconds. The LED light on the top of the keyboard will begin to blink, usually in white or blue. This blinking means the keyboard is now in pairing mode and broadcasting its signal.

The keyboard stays in pairing mode for about two minutes. If the LED stops blinking before you complete the next step, press the pairing button again for three seconds to restart the process.

Select the keyboard from your device's Bluetooth list

Look at your device's Bluetooth settings. Within a few seconds, "Logitech M350s" or similar text should appear in the list of available devices. Tap or click on it to select it. Some devices may ask you to confirm the pairing or enter a PIN code — if so, enter 0000 (four zeros), which is the standard pairing code for Logitech keyboards.

Once you select the keyboard, your device will show a message like "Connected" or "Paired" next to the keyboard's name in the Bluetooth list. The LED on the keyboard will stop blinking and remain steady, indicating a successful connection. You can now type on the keyboard and it should register input on your device.

What to do if the keyboard does not appear in the Bluetooth list

If you do not see "Logitech M350s" in your device's Bluetooth list after holding the pairing button, first check that the keyboard's LED is actually blinking. If it is not, the pairing button may not have been held long enough — try again for a full three seconds. Also verify that the power switch on the back of the keyboard is in the On position.

If the LED is blinking but the keyboard still does not appear, restart both devices. Turn off the keyboard using the power switch, wait ten seconds, and turn it back on. Then turn off your device's Bluetooth, wait a few seconds, and turn it back on. After both are restarted, hold the pairing button on the keyboard again for three seconds and check the Bluetooth list on your device.

If the keyboard still does not appear, the batteries may be low or dead. Replace them with two fresh AAA batteries and try pairing again. If you continue to have trouble, restart your device completely (not just Bluetooth) and attempt pairing one more time.

Reconnecting the keyboard after turning it off

Once the M350s is paired with your device, you do not need to repeat the pairing process every time you use it. Simply turn on the keyboard using the power switch on the back. Within a few seconds, it will reconnect to your device automatically, as long as your device's Bluetooth is turned on and the keyboard is within normal Bluetooth range (usually 30 feet or less).

If the keyboard does not reconnect automatically after you turn it on, check that your device's Bluetooth is still enabled. If it is, turn the keyboard off and on again. If you move the keyboard to a different device, you will need to pair it again by holding the pairing button for three seconds and selecting it from that device's Bluetooth list.

Pairing the keyboard with multiple devices

The M350s can be paired with more than one device, though it can only connect to one device at a time. To pair it with a second device, hold the pairing button on the back of the keyboard for three seconds until the LED blinks. Then go to that device's Bluetooth settings and select "Logitech M350s" from the list. The keyboard will now be paired with both devices.

To switch between devices, simply turn off the keyboard and turn it back on while sitting near the device you want to use. It will reconnect to whichever device it was most recently paired with and is currently in range. If you want to switch to a different device, you may need to manually select the keyboard from that device's Bluetooth settings.

Frequently Asked Questions

Do I need to install software or drivers for the M350s to work?

No. The M350s works as a standard Bluetooth keyboard without any software installation. Once it is paired with your device, it should work immediately. Logitech does offer optional software called Logitech Options or Logitech G Hub for some keyboards, but it is not required for basic typing.

Why does the keyboard keep disconnecting?

Disconnections usually happen because the batteries are running low. Replace the AAA batteries with fresh ones. If disconnections continue, move closer to your device to rule out range issues, and restart both the keyboard and your device. If one device is interfering with Bluetooth signals (like a microwave or cordless phone), move away from it and try again.

Can I use the M350s with my phone or tablet?

Yes. The M350s works with any device that has Bluetooth, including Android phones, iPhones, iPads, and tablets. Follow the same pairing steps: put the keyboard in pairing mode by holding the Bluetooth button, then select it from your device's Bluetooth settings.

What if I forget which device the keyboard is currently paired with?

The keyboard remembers all devices it has been paired with. To connect to a specific device, turn on the keyboard and go to that device's Bluetooth settings. You should see "Logitech M350s" listed as a paired device. Tap or click on it to reconnect. If it does not reconnect automatically, you may need to "forget" the keyboard from other devices and pair it fresh with the one you want to use.

How long do the batteries last?

Logitech estimates the M350s batteries last around 24 months under normal use, though this varies depending on how much you type. When the batteries get very low, the LED may blink or dim. Replace the AAA batteries when you notice the keyboard is not responding reliably or the LED is very dim.