1. Introduction
Thank you for choosing the UGREEN KU005 Rechargeable Wireless Keyboard. This ultra-thin keyboard offers versatile connectivity options, including Bluetooth 5.0 and 2.4G wireless, allowing you to connect up to four devices simultaneously. Designed for comfort and efficiency, it features 99 keycaps, a silent scissor mechanism, and broad compatibility with various operating systems and devices. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance.
2. Package Contents
Please check the package for the following items:
- UGREEN KU005 Wireless Keyboard
- USB-C Charging Cable
- 2.4G USB Receiver
- User Manual (this document)
3. Setup
3.1 Charging the Keyboard
The keyboard is equipped with a built-in 400mAh lithium battery. Before first use, or when the battery is low, connect the keyboard to a power source using the provided USB-C charging cable. A full charge can provide approximately 3 months of usage.
3.2 Powering On/Off
Locate the power switch on the keyboard (usually on the top edge or back). Slide it to the "ON" position to power on the keyboard. Slide it to "OFF" to power it down when not in use to conserve battery.
4. Operating Instructions
4.1 Connecting to Devices (Multi-Mode)
The UGREEN KU005 keyboard supports connecting up to four devices simultaneously using both 2.4G wireless and Bluetooth 3.0/5.0. You can switch between connected devices using FN key combinations.
- 2.4G Wireless Mode:
- Insert the 2.4G USB receiver into an available USB port on your computer or device.
- Press FN + ~ on the keyboard to switch to 2.4G mode. The indicator light will illuminate, and the keyboard should automatically connect.
- Bluetooth Mode (Devices 1, 2, 3):
- Press FN + 1, FN + 2, or FN + 3 to select a Bluetooth channel. The indicator light for the selected channel will blink rapidly, indicating pairing mode.
- On your device (e.g., tablet, phone, laptop), enable Bluetooth and search for "UGREEN KU005" (or similar).
- Select the keyboard from the list of available devices to pair.
- Once paired, the indicator light will stop blinking and remain solid for a few seconds before turning off.
To switch between connected devices, simply press the corresponding FN key combination (FN + ~ for 2.4G, FN + 1, FN + 2, or FN + 3 for Bluetooth devices).
4.2 System Compatibility and Switching
The keyboard is designed with keycaps and functionality optimized for both Mac and Windows operating systems. It is drive-free and compatible with a wide range of systems.
To switch between system modes:
- Windows Mode: Press Fn + Q. (Compatible with Windows, Android, Linux)
- Mac Mode: Press Fn + W. (Compatible with macOS, iOS, iPadOS, tvOS)
5. Maintenance
- Cleaning: Use a soft, dry cloth to wipe the keyboard surface. For deeper cleaning, use a slightly damp cloth with mild soap, ensuring no liquid enters the keyboard. Avoid abrasive cleaners or solvents.
- Battery Care: To prolong battery life, avoid fully discharging the keyboard frequently. Charge it regularly, especially if it will be stored for an extended period. Avoid exposing the keyboard to extreme temperatures.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and excessive dust.
6. Troubleshooting
- Keyboard not connecting via 2.4G:
-
- Ensure the 2.4G USB receiver is securely plugged into a working USB port.
- Make sure the keyboard is powered on and switched to 2.4G mode (FN + ~).
- Try plugging the receiver into a different USB port.
- Ensure there are no strong wireless interferences nearby.
- Keyboard not connecting via Bluetooth:
-
- Ensure the keyboard is powered on and switched to the correct Bluetooth channel (FN + 1, FN + 2, or FN + 3).
- Make sure Bluetooth is enabled on your device and it is discoverable.
- Forget the keyboard from your device's Bluetooth settings and try pairing again.
- Ensure the keyboard is within the 10m/33ft transmission distance.
- Check if the keyboard battery is charged.
- Keys are unresponsive or delayed:
-
- Check the battery level and recharge if necessary.
- Ensure the keyboard is close enough to the receiver/device.
- Switch to a different connection mode (e.g., from Bluetooth to 2.4G) to see if the issue persists.
- Restart the keyboard and the connected device.
- Keyboard not charging:
-
- Ensure the USB-C cable is properly connected to both the keyboard and the power source.
- Try using a different USB-C cable or power adapter.
- Verify the power source is functional.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | UGREEN |
| Product | Wireless Keyboard |
| Model Number | KU005/15258 |
| Key Layout | 99 Keys (US-English layout) |
| Key Structure | Membrane keyboard, Scissor structure |
| Connection Method | Bluetooth 5.0/3.0, 2.4G wireless |
| Battery Type | 1*lithium battery 400mAh (3.7V/1.48Wh polymer) |
| Battery Power Supply | DC3.3V-4.2V, <5mA |
| USB-C Charging Port | DC5±0.25V, <300mA (for charging) |
| Frequency Response | 2.400GHz-2.4835GHz |
| Transmission Distance | 10m/33ft (Max.) |
| Material | Aluminum Alloy (base) + PVC (keycaps) |
| Weight | Keyboard: 510g; With packaging: 715g |
| Driver Installation | Drive-free |
| Compatibility | Windows 7/8.1/10/11, macOS 10.15+, iOS 13.4+, iPad OS 14.0+, Linux, Chrome OS, Android 5.0+ |
| Operating Temperature | -5℃ ~ 40℃ |
| Dimensions (L×W×H) | 365mm × 123mm × 7.1mm |
| Packaging | UGREEN Retail Box |
8. User Tips
- Silent Typing: The keyboard features a scissor mechanism for 99% silent clicking, making it ideal for noise-sensitive environments like offices, libraries, or late-night work.
- Comfortable Typing Experience: The scissor foot mechanism provides a comfortable and responsive typing feel, similar to that of a MacBook.
- Seamless Multi-Device Workflow: Utilize the multi-device connection feature to quickly switch between your computer, tablet, and smartphone, enhancing productivity.
9. Warranty and Support
UGREEN products are designed to meet high-quality standards. This product is covered by a manufacturer's warranty. For detailed warranty information, technical support, or customer service inquiries, please refer to the warranty card included in your package or visit the official UGREEN website.
Please retain your proof of purchase for warranty claims.
