YUNZII B75 PRO Mechanical Keyboard
Information
- Model: 875 PRO
- Battery: 4000mAh
- Layout: 82—Key, 75% Layout
- Structure: Gasket
- RGB: South Facing RGB
- Size/Weight: 970.5g / 2.141b
- Software: Windows
- Frame Material: ABS
- Keycap: Double—Shot Cherry Profile PBT Keycaps
- Connection: Bluetooth 5.0, 2.4G Wireless, Type—C Wired
- System: Windows/Mac/Linux/Android/iOS
- Hot Swappable: Full—Key Hot Swappable, Support 3/5 Pins Hot Swappable Switches
Keyboard ON/OFF Manual
Switch and Indicator
- Type—C Port
- Tri—Mode Switch Between Bluetooth, Wired, and 2.4G Wireless
- 2.4G Slot
Multi—Function Knob
(Default Multimedia Mode)
Multimedia Mode
Press to mute, and press again to unmute. Turn clockwise (rotate to the right), to turn up the volume; Turn counterclockwise (rotate to the left), to turn down the volume.
RGB Mode
Press to change the keyboard backlight mode. Turn left and right to adjust the backlight brightness.
Switching Mode
Long press to switch RGB/Multimedia knob control mode.
Bluetooth Connection FN+I /2/3
- Switch the mode button to the Bluetooth Mode.
- Short press FN+I / 2/3 to select the Bluetooth channel, and the Bluetooth Indicator will flash slowly.
- Long press the FN+I /2/3 for 5s to the Bluetooth pairing mode, the Bluetooth Indicator will flash fast.
- Select the YUNZII 875 PRO BTI /BT2/BT3 to connect it, and the RGB will stay on when paired successfully.
Note: If the pairing fails, the keyboard indicator turns off and goes to sleep. Please reconnect it.
2.4G Wireless Connection: FN+4
- Switch the mode button to the Bluetooth Mode.
- Short press FN+I / 2/3 to select the Bluetooth channel, and the Bluetooth Indicator will flash slowly.
- Long press the FN+I /2/3 for 5s to the Bluetooth pairing mode, the Bluetooth Indicator will flash fast.
- Select the YUNZII 875 PRO BTI /BT2/BT3 to connect it, and the RGB will stay on when paired successfully.
Note: If the pairing fails, the keyboard indicator turns off and goes to sleep, Please reconnect it.
Wired TYPE-C Connection
Switch the mode button to the USB Wired Mode, and connect the keyboard to the device using the cable that comes with the package. After the keyboard is automatically recognized, the connection is successful.
Backlights
- FN+Backspace=Backlight Effect ON/OFF
- FN+INSERT=Change Backlight Effect
- FN+END=Change Backlight Color
- FN+PGUP=Lighting Effect Direction
- FN+ ↑ =Brightness Up
- FN+ ↓ =Brightness Down
- FN+➔=Blinking Speed ↑
- FN+←=Blinking Speed ↓
- FN+Space=Custom Backlight Color
FN Shortcuts
Windows
MacOS
Win&Mac
Battery
Low Power Mode&Charging
When the battery is lower than 15%, the Spacebar will flash red slowly; When charging, the Spacebar will stay on green; After charging is complete, the Spacebar will return to the normal RGB mode.
Battery Query
In wireless mode (Bluetooth/2.4G), press and hold the FN+ right CTRL to check the battery power, the number keys 1 to O will light up to display the power ratio(e.g. 1—5 lights up, which means 50% power left), and the backlights will turn off. When released, the keyboard returns to its previous lighting mode.
Power Saving Mode
When connected wirelessly (Bluetooth/2.4G), if there is no operation within 3 minutes, the keyboard enters sleep mode. The lights will turn off, and the keyboard will be in the connected state. When the keyboard keys are awakened, characters are output at the same time. After 10 minutes of no operation, the keyboard enters deep sleep mode. The keyboard will disconnect, and the keyboard will awaken by pressing a key. The keyboard automatically reconnects after waking up. After reconnecting, the characters’ output is normal.
CUSTOM WEB SOFTWARE
The B75 PRO keyboard is equipped with Windows & MacOs customization functions. Users can follow the page prompts to customize the settings at https://app.qmk.top/, or download the B75 PRO software from the YUNZII official website software page and install it.
ATTENTION
- When the dongle of the B 75 PRO is plugged in, but the device cannot recognize and use it, it may be caused by poor contact.
- When the keyboard backlight dims or the product is used abnormally, the problem should be that the battery power is insufficient, and the keyboard needs to be charged in time in case of power runs out. When charging, connect the keyboard to the PC with the Type—C cable included in the package. The charging time will vary slightly depending on the power used during charging.
- When the keyboard gets stuck or suddenly does not work properly, it may be caused by co—channel signal interference in the environment, except for the low battery. In this case, you can use a TYPE—C cable to connect the device in wired mode, and then switch directly to the Bluetooth/2.4G channel again.
- YUNZII wireless products are all designed with built—in lithium batteries. The B75 PRO keyboard uses an 4000mAh lithium battery. Therefore, for the safety of the user, the product can only be used indoors at room temperature. Please do not use it at high temperatures or near fire sources.
- Do not use plugs, power strips, or power banks to charge the product. This keyboard can only be connected to computers for charging.
- If the product is damaged beyond repair, do not disassemble it or throw it into a fire. It should be sent to a professional scrap station or special recycling box for disposal to avoid accidental risks.
- If you have any questions about products or use, please feel free to contact the YUNZII after—sales support team.
Content List
- B75 PRO Keyboard*l
- USB Cable for TYPE-C *l
- Switch and Keycap Puller * 1
- Function Card & Manual *1
- 2.4G Dongle *l
- PET Dust Cover *l
- Extra Keycaps and Switches
Documents / Resources
 | YUNZII B75 PRO Mechanical Keyboard [pdf] Instruction Manual B75 PRO, B75 PRO Mechanical Keyboard, Mechanical Keyboard, Keyboard |