YUNZII B307/B309 Retro Typewriter Keyboard

Discover the features and functionality of the YUNZII B307 and B309 retro typewriter keyboards. This guide provides comprehensive instructions for connecting and operating these unique devices.

Connectivity Options

The YUNZII B307/B309 keyboards offer versatile connectivity, supporting both wired and Bluetooth connections. Seamlessly switch between up to four devices (one wired, three Bluetooth) using the intuitive mode switch dial.

Bluetooth Pairing

Easily pair your keyboard with multiple devices. Follow the step-by-step instructions for connecting to your first, second, and third Bluetooth devices. The guide also details how to re-pair devices and change Bluetooth channels.

Specific instructions are provided for:

Connecting to multiple Bluetooth devices (CH 1, CH 2, CH 3)
Connecting to Mac PCs
Connecting to Windows 10/11

Learn how to reset Bluetooth pairing by pressing Fn + C for three seconds.

System Conversion

Ensure optimal performance by converting the system to match your device's operating system. Use the following key combinations:

Android: Fn + Q
Windows: Fn + W
iOS, Mac: Fn + E

Status Indicators and Function Keys

Understand the meaning of the LED status indicators for battery life and Caps Lock. Explore the extensive 14 function keys, including 11 hot keys, that enhance productivity and control.

Operation and Charging

Learn how to power the keyboard on and off using the dedicated power button. Detailed instructions are provided for charging the device, emphasizing the use of a 5V/1A low-power adapter to protect the battery.

Power Saving and Cautions

The keyboard features an automatic sleep mode to conserve battery power. Review important cautions for safe and effective use, including advice on cleaning, avoiding water exposure, and maintaining optimal battery performance.

For support and inquiries, visit www.yunzii.com or contact support@yunzii.com.

	YUNZII X71 Tri-Mode Wireless Transparent Mechanical Keyboard Guide A comprehensive guide to the YUNZII X71, a 68% layout, 71-key transparent mechanical keyboard featuring gasket mounting, south-facing RGB, and tri-mode connectivity (Wired Type-C, Bluetooth, 2.4G Wireless). Learn about specifications, content list, connection methods, function shortcuts, RGB controls, battery management, and troubleshooting.
	YUNZII B98 Tri-Mode Wireless Mechanical Keyboard User Guide Comprehensive guide for the YUNZII B98 Tri-Mode Wireless Mechanical Keyboard, covering Bluetooth, 2.4G, and wired connections, as well as detailed instructions on function shortcuts for Windows and macOS, and RGB backlight controls.
	YUNZII X75 PRO Transparent Mechanical Keyboard Quick Start Guide A comprehensive guide to setting up and using the YUNZII X75 PRO Transparent Tri-Mode Mechanical Keyboard, covering wired, Bluetooth, and 2.4G wireless connections, charging, system compatibility, and key combination functions.
	YUNZII X75 PRO Mechanical Keyboard User Guide Comprehensive guide for the YUNZII X75 PRO Transparent Tri-Mode Wireless Customized Mechanical Keyboard, covering connectivity, shortcuts, battery information, and software.
	YUNZII x Royalaxe Y68 Keyboard User Manual and Connectivity Guide Comprehensive guide to the YUNZII x Royalaxe Y68 keyboard, covering wired, 2.4G, and Bluetooth connectivity, mode switching, layout adjustments, and charging instructions.
	YUNZII X75 Keyboard: Wired and Wireless User Guide Comprehensive guide to the YUNZII X75 keyboard, covering its wired and wireless connectivity, function keys, lighting controls, and troubleshooting.
	YUNZII AL66 Tri-Mode Wireless CNC Aluminum Knob Mechanical Keyboard User Guide Comprehensive guide to the YUNZII AL66 mechanical keyboard, covering setup, features, troubleshooting, and customization for wired, Bluetooth, and 2.4G wireless connections.
	YUNZII YZ98 Mechanical Keyboard User Manual & Setup Guide Comprehensive user manual for the YUNZII YZ98 Mechanical Keyboard, covering specifications, connectivity (2.4GHz wireless, Bluetooth, wired), FN key functions, lighting modes, troubleshooting, and safety guidelines. Learn to set up and customize your YZ98 keyboard for macOS, Windows, Android, and iOS.