Introduction
The GREEN KEEPER GKD40 is a versatile portable karaoke machine designed for various entertainment needs. It combines powerful audio output with convenient features, including wireless microphones, LED lighting, and multiple connectivity options. This manual provides essential information for setting up, operating, and maintaining your device.
Image: The GKD40 Portable Karaoke Machine in a home setting, illustrating its use for family entertainment.
What's in the Box
Please ensure all items are present upon unboxing:
- 1 x GKD40 Bluetooth Speaker
- 2 x Wireless Microphones
- 1 x Charging Cable
- 1 x AUX Cable
- 1 x User Manual
Image: A visual representation of the items included in the GKD40 product packaging.
Setup
1. Charging the Speaker
Before initial use, fully charge the GKD40 speaker. The built-in 4000mAh battery provides up to 6 hours of continuous playtime. A full charge typically takes approximately 3 hours.
- Connect the provided charging cable to the speaker's charging port.
- Plug the other end into a suitable power adapter (not included) or USB port.
- The charging indicator will show the charging status.
Image: The GKD40 speaker illustrating its battery capacity and playtime.
2. Powering On/Off
- Press and hold the Power button on the control panel to turn the speaker on or off.
- A sound prompt will indicate the power status.
3. Microphone Setup
The GKD40 includes two 2.4G rechargeable wireless microphones for clear and stable vocal performance.
- Ensure the microphones are charged.
- Turn on each microphone using its dedicated power switch.
- The microphones will automatically pair with the GKD40 speaker.
Image: The two 2.4G rechargeable wireless microphones provided with the GKD40.
Operating Instructions
1. Bluetooth Pairing
- Turn on the GKD40 speaker. It will automatically enter Bluetooth pairing mode.
- On your mobile device, enable Bluetooth and search for "GKD40".
- Select "GKD40" to connect. A sound prompt will confirm successful pairing.
2. TWS (True Wireless Stereo) Pairing
To achieve a wider and more powerful stereo sound, you can pair two GKD40 speakers together.
- Ensure both GKD40 speakers are powered on and not connected to any Bluetooth device.
- Press the TWS button on one of the speakers. It will enter TWS pairing mode.
- The two speakers will automatically connect to each other. A sound prompt will confirm successful TWS pairing.
- Once TWS is established, connect your mobile device to one of the speakers via Bluetooth as described above.
Image: Two GKD40 speakers demonstrating True Wireless Stereo pairing for enhanced audio.
3. EQ Sound Modes
The GKD40 offers three EQ modes to optimize sound for different environments and music styles:
- Bass Boost: Enhances low frequencies for a deeper, more impactful sound.
- Indoor: Optimized for enclosed spaces, providing balanced audio.
- Outdoor: Adjusts sound projection for open-air environments.
Use the dedicated EQ button on the control panel to cycle through these modes.
Image: The GKD40 speaker demonstrating its adaptability to various environments with different EQ settings.
4. LED Party Lights
The speaker features four dynamic LED lighting effects that sync with the music to create an engaging atmosphere.
- Press the Light button on the control panel to cycle through the available lighting modes.
- Press and hold the Light button to turn the LED lights off.
Image: The GKD40 speaker showcasing its vibrant LED light show with multiple effects.
5. Karaoke Mode
With the included wireless microphones, the GKD40 is ready for karaoke performances.
- Ensure microphones are paired and powered on.
- Play your desired karaoke track from a connected device.
- Adjust microphone volume and echo effects using the dedicated controls on the speaker's top panel.
6. Additional Connectivity
The GKD40 supports various input methods:
- AUX Input: Connect external audio devices using the provided 3.5mm AUX cable.
- USB Playback: Insert a USB drive with audio files into the USB port.
- TF Card Playback: Insert a Micro SD (TF) card with audio files into the TF card slot.
- FM Radio: Switch to FM mode to listen to local radio stations.
Image: The GKD40 speaker featuring a built-in phone holder and indicating its diverse connectivity options.
Maintenance
- Clean the speaker and microphones with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the device to extreme temperatures, direct sunlight, or excessive moisture.
- Store the speaker in a cool, dry place when not in use.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted | Charge the speaker fully. |
| No sound | Volume too low or muted | Increase volume on both speaker and connected device. Check mute settings. |
| Bluetooth pairing fails | Speaker not in pairing mode or already connected | Ensure speaker is in pairing mode. Disconnect from other devices. Restart both devices. |
| Microphone not working | Microphone not powered on or not paired | Turn on microphone. Ensure it's charged. Re-pair if necessary. |
| TWS pairing fails | Speakers already connected to other devices | Ensure both speakers are disconnected from other Bluetooth devices before initiating TWS pairing. |
Specifications
| Feature | Specification |
|---|---|
| Brand | GREEN KEEPER |
| Model Name | GKD40 |
| Speaker Maximum Output Power | 500 Watts (Peak), 50 Watts (Rated) |
| Frequency Response | 20 Hz |
| Connectivity Technology | Bluetooth |
| Audio Output Mode | Surround |
| Speaker Type | Subwoofer |
| Compatible Devices | Smartphone |
| Colour | Black |
| Bluetooth Range | 10 Metres |
| Battery Average Life | 6 Hours |
| Item Dimensions (D x W x H) | 19D x 20.5W x 38H centimetres |
| Item Weight | 6.08 Pounds |
| Power Source | Battery Powered |
| Number of Batteries | 1 9V batteries required (included) |
| Battery Capacity | 4000 Milliamp Hours |
| Impedance | 4 Ohms |
| Signal-to-Noise Ratio | 75 dB |
Image: An overview of the GKD40's key technical specifications and features.
Warranty
The GREEN KEEPER GKD40 Portable Karaoke Machine comes with a 1-Year Product Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
Support
For further assistance, technical support, or warranty inquiries, please contact GREEN KEEPER customer service. Refer to the contact information provided on the product packaging or the official GREEN KEEPER website.
