1. Introduction
The Delux GM909 is a full-size, ultra-thin split ergonomic keyboard designed to enhance typing posture and reduce strain. Its natural arc and slight arch promote a more comfortable and familiar typing experience, minimizing wrist pain and muscle fatigue in the hands and shoulders.
This keyboard features a curved split design that encourages natural alignment of wrists and forearms. It utilizes quiet scissor switches for stable, precise, and responsive typing. The integrated leather-cushioned palm rest provides all-day comfort and is easy to clean. The GM909 offers versatile connectivity with both 2.4G wireless and Bluetooth 5.2, allowing seamless switching between up to three devices. It is powered by a built-in 500mAh rechargeable battery and supports Type-C charging.
Figure 1: Delux GM909 Ergonomic Keyboard in use, showcasing its split design and ultra-thin profile.
2. What's in the Box
Please check the contents of your package. If any items are missing or damaged, contact your retailer.
- Delux GM909 Ergonomic Wireless Keyboard
- USB Receiver (2.4G)
- Type-C Charging Cable
- User Manual (this document)
Figure 2: Package contents including the keyboard, charging cable, and USB receiver.
3. Specifications
| Feature | Detail |
|---|---|
| Model | GM909 |
| Dimensions | 450 x 235 x 48 mm |
| Weight | 933 ± 10g |
| Connection Type | 2.4Ghz Wireless, Bluetooth 5.2 |
| Battery Capacity | 500mAh (Rechargeable Li-Ion) |
| Charging Port | Type-C |
| Charging Time | Approx. 1.5 hours |
| Battery Life | Approx. 150 hours |
| Keycap Amount | 112 Keys (Full Size) |
| Key Lifetime | 5 million clicks |
| Key Switch Type | Scissor Switches (Conductive Rubber) |
| Keycup Material | ABS Plastic |
| Hot-swappable Switches | No |
| Backlight Type | No backlight |
| Layout | QWERTY (English) |
| Operating System Compatibility | Win8, Win10, Win11, Mac OS, iOS, Android |
| Special Features | Ergonomic, Multimedia, Waterproof, Wrist Support |
| IC | BK3633 |
| Certifications | CE, EPA, FCC, RoHS, KC, WEEE |
4. Setup
4.1 Charging the Keyboard
Before first use, or when the battery is low, charge the keyboard using the provided Type-C cable.
- Locate the Type-C charging port on the keyboard (usually on the top edge).
- Connect one end of the Type-C cable to the keyboard and the other end to a USB power source (e.g., computer USB port, wall adapter).
- The indicator light will show charging status (refer to Section 5.3 for details).
- A full charge takes approximately 1.5 hours and provides up to 150 hours of battery life.
Figure 3: Connecting the Type-C charging cable to the keyboard.
4.2 Connecting to Devices
The Delux GM909 supports both 2.4G wireless and Bluetooth 5.2 connections, allowing you to connect and switch between up to three devices.
2.4G Wireless Connection:
- Locate the USB receiver stored in the magnetic compartment on the underside of the keyboard.
- Plug the USB receiver into an available USB port on your computer.
- Turn on the keyboard.
- Press the "2.4G" button on the keyboard to select 2.4G mode. The indicator light will confirm the connection.
Figure 4: Magnetic compartment for storing the USB receiver.
Bluetooth Connection (BT1, BT2):
- Turn on the keyboard.
- Press and hold either the "BT1" or "BT2" button for 3-5 seconds until the corresponding indicator light starts blinking rapidly, indicating pairing mode.
- On your device (computer, tablet, smartphone), open Bluetooth settings.
- Search for "Delux GM909" (or similar) in the list of available devices and select it to pair.
- Once paired, the indicator light will stop blinking and remain solid for a few seconds.
- Repeat these steps for a second Bluetooth device using the other "BT" button.
Figure 5: Keyboard demonstrating multi-device connectivity via 2.4G and Bluetooth.
5. Operating Instructions
5.1 Switching Between Devices
To switch between connected devices, simply press the corresponding connection button (2.4G, BT1, or BT2) on the keyboard. The keyboard will quickly connect to the selected device.
5.2 Multimedia Function Keys
The F1-F12 keys on the keyboard have dual functions: standard F-keys and multimedia shortcuts. To switch between these functions, press the Fn key simultaneously with the Lock key (often indicated by a padlock icon or similar). Once switched, pressing an F-key will activate its multimedia function (e.g., volume control, media playback).
Figure 6: Close-up of the F-keys, showing multimedia icons for dual functionality.
5.3 Indicator Lights
The keyboard features indicator lights to provide status information:
- 2.4G/BT1/BT2 Indicator:
- Solid Light: Successfully connected to the corresponding device.
- Rapid Blinking: In Bluetooth pairing mode.
- Slow Blinking: Searching for connection or low battery (may vary).
- Charging Indicator:
- Solid Red/Orange: Keyboard is charging.
- Light Off/Green: Charging complete.
- Caps Lock/Num Lock Indicator: Lights up when Caps Lock or Num Lock is active.
Figure 7: Location of indicator lights on the keyboard, showing status for connection, charging, and lock functions.
6. Maintenance
To ensure the longevity and optimal performance of your Delux GM909 keyboard, follow these maintenance guidelines:
- Cleaning the Keyboard:
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the keycaps and keyboard surface.
- Avoid using harsh chemicals, abrasive cleaners, or solvents.
- For dust and debris between keys, use compressed air.
- Ensure the keyboard is powered off and disconnected from any power source before cleaning.
- Cleaning the Palm Rest:
- The leather-cushioned palm rest is designed to be easy to clean. Wipe it gently with a damp cloth.
- Avoid excessive moisture and direct sunlight to prevent material degradation.
- Storage:
- When not in use for extended periods, store the keyboard in a cool, dry place.
- Ensure the USB receiver is securely stored in its magnetic compartment to prevent loss.
7. Troubleshooting
If you encounter issues with your Delux GM909 keyboard, please refer to the following troubleshooting steps:
- Keyboard not responding:
- Ensure the keyboard is powered on.
- Check the battery level and charge the keyboard if necessary.
- Verify the correct connection mode (2.4G, BT1, BT2) is selected.
- For 2.4G, ensure the USB receiver is securely plugged into your device. Try a different USB port.
- For Bluetooth, ensure Bluetooth is enabled on your device and the keyboard is paired. Try re-pairing the keyboard.
- Restart your computer/device.
- Lag or intermittent connection:
- Ensure the keyboard is within the effective range of your device (typically up to 10 meters for Bluetooth/2.4G).
- Minimize interference from other wireless devices (e.g., Wi-Fi routers, other Bluetooth devices).
- Charge the keyboard fully.
- Multimedia keys not working:
- Ensure you have switched to multimedia function mode by pressing Fn + Lock (or equivalent key).
- Check your operating system's settings for media key functionality.
- Keys not typing correctly or sticking:
- Clean the affected keys with compressed air to remove any debris.
- Ensure the keyboard is on a flat, stable surface.
8. User Tips
No specific user tips were available from reviews or Q&A for this product. However, general tips for ergonomic keyboards include:
- Adjust your posture: Sit upright with your feet flat on the floor. Your elbows should be at a 90-degree angle, and your wrists should be straight, not bent up or down.
- Take breaks: Regular short breaks can help prevent strain and fatigue.
- Practice: It may take some time to get used to the split ergonomic layout. Be patient and allow yourself time to adapt.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.
