How to Set Up the Keychron B6 Pro Ultra-Slim Keyboard

By Keychron | Custom Mechanical Keyboards for Mac, Windows ... | Published: 2026-10-22

Category: How-to Guides

Learn how to set up your Keychron B6 Pro ultra-slim keyboard with step-by-step instructions for Bluetooth, 2.4 GHz, and wired connections.

Quick Answer

To set up your Keychron B6 Pro, charge it fully, then choose between Bluetooth, 2.4 GHz, or wired connection using the switch on the side. Pairing is straightforward and takes under a minute.

What to Know Before You Start

The Keychron B6 Pro is an ultra-slim wireless keyboard that supports three connection modes: Bluetooth, 2.4 GHz via the included USB receiver, and a wired USB-C connection. It works with Mac, Windows, and other devices, but the default mode is Bluetooth. You can switch modes using the slide switch on the left side of the keyboard.

Before pairing, ensure the keyboard is charged. A full charge takes about 2 hours and lasts up to 3–4 weeks with normal use. The LED indicator will flash red when the battery is low.

Step-by-Step Setup Guide

Charge the Keyboard: Plug the included USB-C cable into the keyboard and a power source. Wait until the LED indicator turns solid green (fully charged). A common mistake is trying to pair before the keyboard has enough charge. Always charge fully first.
Choose Your Connection Mode: Slide the switch on the left side of the keyboard to Bluetooth, 2.4 GHz, or Wired mode. For Bluetooth, slide to the Bluetooth icon. For 2.4 GHz, slide to the radio wave icon. For wired, slide to the USB icon and connect the cable. If you slide to 2.4 GHz without plugging in the USB receiver, the keyboard won't work. Ensure the receiver is inserted into your computer.
Pair via Bluetooth: In Bluetooth mode, press and hold the Fn + 1 key for 3 seconds until the LED blinks blue. On your device, search for 'Keychron B6 Pro' and select it. The LED will turn solid blue when paired. The keyboard can store up to 3 Bluetooth devices. Use Fn + 1, Fn + 2, or Fn + 3 to switch between them.
Pair via 2.4 GHz: Insert the USB receiver into your computer's USB port. Slide the keyboard switch to the 2.4 GHz position. The keyboard should connect automatically within a few seconds. If connection fails, remove the receiver, restart your computer, and reinsert it. Avoid placing the receiver near metal objects or USB hubs.
Test the Connection: Open a text editor and type a few characters to confirm the keyboard is working. If nothing appears, check the switch position and battery level. If keys don't respond, try a different USB port or switch to wired mode to isolate the issue.

Product Details

Keychron B6 Pro Ultra-Slim Wireless Keyboard: The Keychron B6 Pro supports 2.4 GHz, Bluetooth, and a wired connection. This flexibility lets you switch between devices seamlessly without needing separate keyboards for each.
Keychron B6 Pro Ultra-Slim Wireless Keyboard