1. Introduction
This manual provides comprehensive instructions for the ULSOU Wireless Keyboard, Model K599. This keyboard is designed for seamless compatibility with Mac, iOS, and iPad systems, offering both Bluetooth and 2.4G USB dual-channel connectivity. Its compact, ultra-slim design and quiet scissor-switch keys make it suitable for various environments.
Image 1.1: Overview of the ULSOU Wireless Keyboard K599, showcasing its full Mac-compatible layout.
Image 1.2: The ULSOU Wireless Keyboard K599 demonstrating compatibility with various Apple devices including Mac, iPad, and iPhone.
2. What's in the Box
Please verify that all the following items are included in your package:
- ULSOU Wireless Keyboard (Model K599)
- USB Receiver (for 2.4G wireless connection)
- USB-C Charging Cable
- User Manual
3. Setup and Connection
3.1 Powering On/Off
Locate the ON/OFF switch on the side or back of the keyboard. Slide the switch to the 'ON' position to power on the keyboard. Slide it to 'OFF' when not in use to conserve battery.
Image 3.1: The ON/OFF switch and USB-C charging port location on the keyboard.
3.2 Connecting to Devices (Bluetooth & 2.4G USB)
The ULSOU Wireless Keyboard supports three connection channels: two Bluetooth channels (BT1, BT2) and one 2.4G USB wireless channel. This allows for seamless switching between up to three devices.
Image 3.2: Visual guide for connecting the keyboard via Bluetooth (BT1, BT2) and 2.4G USB, showing compatibility with Windows, Mac, and Android devices.
Bluetooth Pairing (BT1 / BT2):
- Ensure the keyboard is powered on.
- Press and hold the Fn + 1 key combination for 5 seconds to enter Bluetooth pairing mode for BT1. The indicator light will flash.
- Alternatively, press and hold the Fn + 2 key combination for 5 seconds to enter Bluetooth pairing mode for BT2. The indicator light will flash.
- On your device (Mac, iPad, iPhone), go to Bluetooth settings and search for available devices.
- Select "ULSOU Keyboard" (or similar name) from the list to connect. The indicator light will stop flashing once connected.
2.4G USB Wireless Pairing:
- Ensure the keyboard is powered on.
- Insert the USB receiver into an available USB port on your computer.
- Press and hold the Fn + 3 key combination for 5 seconds to enter 2.4G USB pairing mode. The indicator light will flash.
- The keyboard should automatically connect to your device. The indicator light will stop flashing once connected.
3.3 Switching Between Devices
To switch between connected devices, simply press the corresponding channel key:
- Press Fn + 1 to switch to Bluetooth Device 1.
- Press Fn + 2 to switch to Bluetooth Device 2.
- Press Fn + 3 to switch to 2.4G USB Wireless Device.
4. Operating Instructions
4.1 Multimedia Keys
The keyboard features 11 multimedia shortcut keys designed for Mac layout, enhancing productivity and convenience. These keys are typically accessed by pressing the Fn key in combination with the corresponding function key (F1-F12).
Image 4.1: Diagram highlighting the multimedia keys and their functions on the ULSOU Wireless Keyboard K599.
- F1: Brightness Decrease
- F2: Brightness Increase
- F3: Open Mission Control
- F4: Search
- F5: Microphone
- F6: Null (No assigned function)
- F7: Previous Track
- F8: Play/Pause
- F9: Next Track
- F10: Mute
- F11: Volume -
- F12: Volume +
4.2 Charging and Power Saving
The keyboard features a built-in rechargeable battery. Use the provided USB-C charging cable to connect the keyboard to a power source (e.g., computer USB port, USB wall adapter). A full charge can last for approximately 2-3 months based on typical daily usage.
To conserve battery life, the keyboard includes an intelligent power-saving function. It will automatically enter sleep mode after 10 minutes of inactivity. To wake the keyboard, simply press any key.
Image 4.2: Illustration of the USB-C rechargeable design, indicating a 2-hour charge time for over 3 months of working time.
5. Maintenance
5.1 Cleaning
To clean your keyboard, power it off first. Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution. Avoid using harsh chemicals, abrasive cleaners, or spraying liquids directly onto the keyboard. For cleaning between keys, a can of compressed air can be used to remove dust and debris.
5.2 Storage
When storing the keyboard for extended periods, ensure it is fully charged and then powered off. Store it in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
6.1 Keyboard Not Connecting
- Check Power: Ensure the keyboard is powered on and has sufficient battery charge.
- Re-pair: Follow the pairing instructions in Section 3.2 to re-establish the connection.
- USB Receiver: For 2.4G connection, ensure the USB receiver is securely plugged into a working USB port. Try a different USB port if necessary.
- Device Bluetooth: Ensure Bluetooth is enabled on your device and that it is discoverable.
- Interference: Move the keyboard closer to your device and away from other wireless devices that might cause interference.
6.2 Keys Not Responding
- Battery Level: Low battery can cause intermittent key response. Charge the keyboard fully.
- Connection: Verify the keyboard is properly connected to your device (see 6.1).
- Restart: Try turning the keyboard off and on again, and restart your device.
6.3 Input Lag or Delay
- Distance: Ensure the keyboard is within the effective range of your device (typically up to 10 meters).
- Interference: Reduce potential wireless interference from other devices.
- Battery: Charge the keyboard to ensure optimal performance.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | K599 |
| Connectivity Technology | Bluetooth (BT1, BT2), 2.4G RF (USB Receiver) |
| Compatible Devices | Laptop, PC, Smartphone, Tablet (Mac, iOS, iPad systems) |
| Keyboard Description | Multimedia, Scissor-switch keys |
| Special Features | Portable, Rechargeable, Quiet Typing, Ultra-slim Design |
| Product Dimensions | 11.1 x 4.64 x 0.2 inches (28.19 x 11.79 x 0.51 cm) |
| Item Weight | 12.2 ounces (345.86 grams) |
| Battery Type | 1 Lithium Polymer battery (included) |
| Material | Plastic |
Image 7.1: The ULSOU Wireless Keyboard K599 showcasing its precise dimensions and ultra-slim design, emphasizing portability.
Image 7.2: A close-up view of the scissor-switch key design, illustrating the mechanism responsible for quiet and responsive typing.
8. Warranty and Support
ULSOU provides a worry-free after-sales warranty service for all customers who purchase the ULSOU Wireless Keyboard for Mac. If you encounter any issues or require assistance, please contact ULSOU customer support. We are committed to providing a satisfactory solution promptly.
For support, please refer to the contact information provided with your product packaging or visit the official ULSOU website.
