GREEN KEEPER GKD30
GREEN KEEPER Portable Karaoke Machine
Model: GKD30
Introduction
Thank you for choosing the GREEN KEEPER Portable Karaoke Machine. This manual provides essential information for the safe and efficient operation of your new device. Please read it thoroughly before use and retain it for future reference.
Product Overview
The GREEN KEEPER Portable Karaoke Machine is a versatile audio system designed for entertainment. It features a powerful speaker, two wireless microphones with voice effects, dynamic RGB lighting, and multiple connectivity options.

Image: The GREEN KEEPER Portable Karaoke Machine and its two wireless microphones.
Key Features:
- Powerful Sound: Equipped with a 20W speaker and 200W peak power, enhanced by an advanced DSP chip for crisp vocals and dynamic audio.
- Portable Design: Compact and lightweight with an easy-carry handle, ideal for indoor and outdoor use.
- Wireless Microphones: Includes two wireless microphones with 5 fun voice effects (male, female, child, monster, and original).
- Party Lights & TWS: Colorful RGB lights sync to the beat. Connect two speakers via TWS mode for stereo sound.
- Multiple Playback Options: Supports Bluetooth 5.3, AUX, USB, TF card, and FM radio.
- Long-Lasting Battery: Built with a 5200mAh rechargeable battery for hours of continuous playtime.

Image: Internal components highlighting the 2.5-inch dual frequency audio drivers and dynamic rhythm lights.

Image: The portable speaker being carried during an outdoor activity, demonstrating its portability.

Image: A young girl using the microphone, with icons illustrating the five available voice effects.
What's in the Box
Please check the contents of your package to ensure all items are present:
- Portable Bluetooth Speaker x1
- Smart Wireless Microphone x 2
- AUX Cable x1
- USB Charging Cable x1
- User Manual x1

Image: All components included in the package: the main speaker unit, two wireless microphones, charging cables, and the user manual.
Setup Guide
1. Charging the Device:
Before first use, fully charge the karaoke machine and both wireless microphones. Use the provided USB charging cable. The charging indicator lights will show charging status.
2. Powering On:
- Press and hold the power button (⏻) on the main speaker unit for a few seconds until the unit powers on and the RGB lights illuminate.
- For each microphone, press and hold its power button until the indicator light turns on, indicating it's ready for pairing.
3. Initial Pairing (Microphones):
The microphones are pre-paired with the speaker. Once both the speaker and microphones are powered on, they should automatically connect. A successful connection is indicated by the microphone's light changing from red/orange to green/blue and an audible confirmation from the speaker.
4. Bluetooth Connection (for Music Playback):
- Ensure the karaoke machine is powered on and in Bluetooth mode (indicated by a flashing blue light or a voice prompt).
- On your smartphone, tablet, or other Bluetooth-enabled device, go to Bluetooth settings.
- Search for available devices and select "GREEN KEEPER" from the list.
- Once connected, you will hear a confirmation sound from the speaker. You can now play music through the karaoke machine.
Operating Instructions
1. Mode Selection:
Press the 'M' button on the speaker to cycle through available modes: Bluetooth, AUX, USB, TF Card, and FM Radio.
2. Music Playback Controls:
- Play/Pause: Press the Play/Pause button (▶‖) on the speaker.
- Next Track: Press the Next Track button (▶▶|).
- Previous Track: Press the Previous Track button (|◀◀).
- Volume Adjustment: Use the volume buttons on the speaker or your connected device.
3. Microphone Usage:
- Microphone Volume: Use the volume controls on the microphone itself to adjust its output level.
- Voice Effects: Press the dedicated button on the microphone to cycle through the 5 magic voice effects (original, male, female, child, monster).
4. Party Lights Control:
Press the light button (※) on the speaker to change the RGB lighting modes. Options include 7-color gradient, single-color gradient, single-color sync, and light off.

Image: A mother and daughter enjoying karaoke, with the speaker's dynamic lighting modes illustrated below.
5. True Wireless Stereo (TWS) Pairing:
If you have two GREEN KEEPER Portable Karaoke Machines, you can pair them for a stereo sound experience:
- Ensure both speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the master unit), press and hold the TWS button (often integrated with the Play/Pause button or a dedicated button, refer to the speaker's specific markings if different).
- The speakers will search for each other and automatically pair. A confirmation sound will indicate successful TWS connection.
- Now, connect your device to the master speaker via Bluetooth. Audio will play through both speakers in stereo.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the speaker and microphones. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
- Water Resistance: The product is portable but not explicitly stated as waterproof. Avoid exposure to water or excessive moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted. | Charge the speaker and microphones fully. |
| No sound from speaker | Volume is too low; incorrect mode selected; device not connected. | Increase volume; switch to correct input mode (Bluetooth, AUX, etc.); ensure Bluetooth device is paired. |
| Microphone not working | Microphone is off or not paired; battery low. | Power on microphone; ensure it's paired (indicator light should be solid); charge microphone battery. |
| Bluetooth connection issues | Device too far; interference; speaker not in pairing mode. | Move device closer to speaker; avoid obstacles; restart speaker and device's Bluetooth. |
| Echo from microphones | Echo effect is enabled or too high. | Adjust or disable the echo effect on the microphone or speaker if available. (Note: Some users report persistent echo.) |
Specifications
| Feature | Detail |
|---|---|
| Brand | GREEN KEEPER |
| Model Number | GKD30 |
| Item Weight | 3.02 pounds |
| Product Dimensions | 12.2 x 5.3 x 7.5 inches |
| Output Wattage | 200 Watts (Peak) |
| Speaker Count | 2 |
| Battery Type | Lithium Ion (5200mAh) |
| Power Source | Battery Powered |
| Bluetooth Version | 5.3 |
| Connectivity | Bluetooth, 3.5mm Jack (AUX), USB, TF Card |
| Material Type | PP |
| Color | Black |
| Recommended Uses | Indoor/Outdoor |
Warranty Information
For specific warranty details, please refer to the warranty card included in your product packaging or contact GREEN KEEPER customer support directly. Keep your proof of purchase for warranty claims.
Customer Support
If you encounter any issues or have questions not covered in this manual, please contact GREEN KEEPER customer support. Refer to the product packaging or the brand's official website for contact information.
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