1. Product Overview
The Logitech MK955 Signature Slim Wireless Keyboard and Mouse Combo provides a versatile and efficient input solution for multiple devices. This combo includes the K950 Signature Slim Keyboard and the M750L Signature Plus Mouse, designed for comfortable and quiet operation across various operating systems.

Image: The Logitech MK955 Signature Slim Wireless Keyboard and Mouse Combo, featuring a graphite-colored keyboard with a full numeric keypad and a matching ergonomic mouse, alongside a Logi Bolt USB receiver.
What's in the Box
- Logitech K950 Signature Slim Wireless Keyboard
- Logitech M750L Signature Plus Wireless Mouse
- Logi Bolt USB Receiver
- AAA Batteries (pre-installed or included)

Image: An overhead view showing the contents of the product packaging, including the keyboard, mouse, Logi Bolt USB receiver, and AAA batteries.
2. Setup Instructions
2.1 Battery Installation
The keyboard and mouse are battery-powered. Ensure batteries are correctly installed before first use. The Logi Bolt USB receiver is typically found inside the mouse's battery compartment or within the product packaging.
2.2 Connecting Your Devices
The MK955 combo offers two primary connection methods: Bluetooth and the Logi Bolt USB receiver.
- Using the Logi Bolt USB Receiver:
- Locate the Logi Bolt USB receiver.
- Plug the receiver into an available USB port on your computer.
- Turn on the keyboard and mouse. They should automatically connect to the receiver.
- Using Bluetooth:
- Turn on the keyboard and mouse.
- On the keyboard, press and hold one of the Easy-Switch keys (1, 2, or 3) until the LED indicator blinks rapidly, indicating pairing mode.
- On your computer or device, navigate to Bluetooth settings and select "Logitech K950" or "Logitech M750L" from the list of available devices to pair.
- Repeat for the other device if necessary.

Image: A close-up view of the Logitech K950 keyboard's Easy-Switch buttons labeled 1, 2, and 3, used for switching between paired devices.
2.3 Installing Logi Options+ App
For enhanced customization and productivity features, download and install the Logi Options+ App from the official Logitech website. This application allows you to personalize keys, buttons, and shortcuts for both the keyboard and mouse.

Image: A computer screen displaying the Logi Options+ application interface, showing options for customizing Logitech devices.
3. Operating Instructions
3.1 Multi-Device Switching
The K950 keyboard and M750L mouse can be paired with up to three different devices. Use the Easy-Switch buttons (1, 2, 3) on the keyboard and the corresponding button on the mouse to seamlessly switch between connected computers, tablets, or smartphones.

Image: A user efficiently working across a desktop computer and a laptop using the Logitech MK955 combo, demonstrating multi-device capability.
3.2 Keyboard Features
- Quiet Typing: The keyboard is designed for a quiet typing experience, minimizing noise in shared workspaces.
- Customizable Keys: Utilize the Logi Options+ App to assign custom functions and shortcuts to various keys.
- Multi-OS Layout: The keyboard supports Mac, Windows, and Chrome OS layouts, with dedicated keys for each.
- Tilt Legs: Adjust the keyboard angle for ergonomic comfort using the integrated tilt legs (+4°).

Image: A close-up of hands typing on the Logitech K950 keyboard, highlighting its slim profile and quiet keys.
3.3 Mouse Features
- Silent Clicking: The M750L mouse features SilentTouch technology for significantly reduced click noise.
- SmartWheel: The scroll wheel allows for precise line-by-line scrolling or rapid, free-spinning scrolling for long documents.
- Contoured Shape: Designed for larger hands, the ergonomic shape provides comfortable use over extended periods.
- Customizable Buttons: Program side buttons and other controls using the Logi Options+ App.

Image: A hand operating the Logitech M750L mouse, focusing on the SmartWheel and ergonomic design.
4. Maintenance
4.1 Battery Life and Replacement
The K950 keyboard offers up to 36 months of battery life, while the M750L mouse provides up to 24 months, depending on usage. When batteries are low, replace them with new AAA batteries for the keyboard and AA batteries for the mouse (check device for specific battery type if different from included).
4.2 Cleaning Instructions
- Disconnect the devices from your computer before cleaning.
- Use a soft, lint-free cloth lightly dampened with water or an approved electronics cleaner.
- Avoid harsh chemicals, abrasive materials, or excessive moisture.
- For the keyboard, use compressed air to remove debris from between keys.
5. Troubleshooting
5.1 Connectivity Issues
- No Connection: Ensure batteries are charged and correctly installed. Verify the Logi Bolt USB receiver is securely plugged in, or that Bluetooth is enabled on your device and the keyboard/mouse are in pairing mode.
- Intermittent Connection: Move the keyboard and mouse closer to the receiver or Bluetooth-enabled device. Avoid placing large metal objects between the devices and the receiver/computer.
- Bluetooth Wake-up: When connected via Bluetooth, the keyboard and mouse may not wake your computer from sleep. You might need to use your computer's power button or an existing wired input device to wake it.
- BIOS Access: Bluetooth connections typically do not function during system boot-up. If you need to access BIOS/UEFI settings, a wired keyboard is usually required. The Logi Bolt receiver may offer better compatibility for pre-OS functions.
5.2 Logi Options+ App Functionality
- Custom Keys Not Working: After waking your computer from sleep, custom key assignments from the Logi Options+ App may take a few moments to become active. If they remain unresponsive, try manually launching the Logi Options+ App.
- App Not Detecting Devices: Ensure the Logi Options+ App is up to date. Re-pair your devices if they are not detected by the software.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Logitech |
| Model Name | MK955 Signature Slim Combo (K950 Keyboard, M750L Mouse) |
| Item Model Number | 920-012469 |
| Connectivity Technology | Bluetooth, Logi Bolt USB Receiver |
| Compatible Devices | PC, Laptop, Linux, Mac, iPadOS, iOS, Android, Chrome OS |
| Operating System | Windows 10/11, macOS, Chrome OS, Linux, iPadOS, iOS, Android |
| Power Source | Battery Powered (AAA for keyboard, AA for mouse - check device for specifics) |
| Keyboard Battery Life | Up to 36 months |
| Mouse Battery Life | Up to 24 months |
| Material | Made with certified post-consumer recycled plastic (minimum 48% for keyboard; 25% for mouse) |
| Color | Graphite |
| Item Weight | Approximately 2.42 pounds (combo) |

Image: An annotated diagram highlighting key features of the Logitech K950 keyboard, including tilt legs, shortcuts, media keys, multi-device connectivity, and multi-OS layouts.

Image: An annotated diagram highlighting key features of the Logitech M750L mouse, including silent click, SmartWheel, DPI button, customizable buttons, contoured shape, and multi-OS connectivity.

Image: An illustration emphasizing the use of recycled plastic in the product and responsible packaging, reflecting Logitech's commitment to sustainability.
7. Warranty and Support
7.1 Product Warranty
Logitech products typically come with a limited hardware warranty. Please refer to the warranty information included with your product packaging or visit the official Logitech website for specific terms and conditions applicable to your region and product model.
7.2 Customer Support
For further assistance, technical support, or to download the latest version of the Logi Options+ App, please visit the official Logitech support website. You can find FAQs, troubleshooting guides, and contact information for customer service there.
Logitech Support Website: www.logitech.com/support





