Keychron M3 Mini 4K Wireless Optical Mouse User Manual

Introduction

Welcome to the user manual for your Keychron M3 Mini 4K Wireless Optical Mouse. This guide provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your device. The M3 Mini 4K is designed for high-performance and versatility, featuring an ultra-lightweight design, a PixArt 3395 sensor, and multi-mode connectivity (2.4 GHz, Bluetooth 5.1, and wired).

Figure 1: Keychron M3 Mini 4K Mouse and 4K Wireless Receiver.

Package Contents

Please ensure all items are present in your package:

• 1x Keychron M3 Mini 4K Wireless Optical Mouse
• 1x 4K Wireless Receiver
• 1x Type-C to Type-C Cable
• 1x Type-A to Type-C Adapter

Figure 2: Standard Version Package Contents.

Setup

Charging the Mouse

Before first use, it is recommended to fully charge the mouse. Connect the included Type-C cable to the mouse and a USB power source. The mouse features a 600 mAh battery, providing up to 135 hours of continuous use in 1K Polling Rate mode.

Figure 3: Battery and Lightweight Features.

Connecting the Mouse

The Keychron M3 Mini 4K supports three connection modes: 2.4 GHz Wireless, Bluetooth 5.1, and Wired.

2.4 GHz Wireless Mode

1. Locate the mode switch on the bottom of the mouse and set it to "2.4G".
2. Insert the 4K Wireless Receiver into an available USB port on your computer. Use the Type-A to Type-C adapter if your computer only has Type-A ports.
3. The mouse should automatically connect.

Figure 4: 2.4 GHz Wireless Setup.

Bluetooth 5.1 Mode

1. Locate the mode switch on the bottom of the mouse and set it to "BT".
2. On your computer, open Bluetooth settings and search for new devices.
3. Select "Keychron M3 Mini" from the list of available devices to pair.

Wired Mode

1. Connect the Type-C cable directly from the mouse to your computer's USB port.
2. The mouse will function as a wired mouse and charge simultaneously.

Operating Instructions

DPI Adjustment

The mouse features a dedicated DPI button on its underside for quick sensitivity adjustments without software. The PixArt 3395 sensor supports up to 26,000 DPI.

Figure 5: DPI and Report Rate Adjustment Buttons.

Polling Rate Adjustment

The M3 Mini 4K supports a 4000 Hz polling rate in 2.4 GHz mode. You can switch between different polling rates using the dedicated "Report Rate" button on the underside of the mouse. Indicator lights will show the current polling rate:

• White: 125 Hz (2.4G / BT / Wired)
• Blue: 500 Hz (2.4G / Wired)
• Red: 1000 Hz (2.4G / Wired)
• Blue + Red: 2000 Hz (2.4G)
• White + Red: 4000 Hz (2.4G)

Figure 6: Polling Rate Indicator Guide.

Keychron Engine Software

For advanced customization, including key remapping, macros, RGB lighting effects, and professional settings for LOD (Lift-Off Distance), polling rate, and DPI, download the Keychron Engine software. It is compatible with Windows 11/10 and macOS.

Visit the official Keychron website to download the latest version of the software: Keychron Engine Download

Figure 7: Keychron Engine Software Interface.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the mouse surface. For stubborn dirt, a slightly damp cloth can be used, but ensure no liquid enters the mouse.
• Storage: Store the mouse in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: Avoid fully discharging the battery frequently. For long-term storage, charge the battery to about 50%.

Troubleshooting

Specifications

Warranty and Support

Keychron products come with a limited warranty. For detailed warranty information, technical support, or service inquiries, please visit the official Keychron support website or contact their customer service.

Official Keychron Support: https://www.keychron.com/pages/contact-us