1. Product Overview
The Haomuren K12 Mini Karaoke Portable Bluetooth Speaker is a compact and versatile entertainment system designed for family gatherings, camping, and children's gifts. It features stable Bluetooth 5.3 connectivity, multiple playback modes, fun voice effects, dynamic lighting, and powerful sound quality.
Figure 1: Haomuren K12 Mini Karaoke Machine with connectivity options.
Video 1: Product demonstration showcasing features and sound.
2. Setup
2.1 Unpacking and Initial Charge
Carefully remove all components from the packaging. Before first use, ensure both the speaker and microphones are fully charged. Use the provided Type-C charging cable to connect the devices to a suitable power source (e.g., USB wall adapter, computer USB port).
- Charging Time: Approximately 2-3 hours for a full charge.
- Battery Life: Up to 6-10 hours of continuous play.
Figure 2: Battery and charging specifications.
2.2 Connecting Devices (Bluetooth)
- Power On: Press and hold the Power ON/OFF button on the speaker and each microphone until the indicator lights illuminate.
- Pairing Mode: The speaker will automatically enter Bluetooth pairing mode.
- Device Search: On your smartphone, tablet, or other Bluetooth-enabled device, search for available Bluetooth devices.
- Select Device: Select "K12" from the list of available devices.
- Confirmation: A confirmation sound will indicate successful pairing.
The K12 supports Bluetooth 5.3 for a stable connection up to 50 feet.
Figure 3: Speaker and Microphone Controls and Ports.
2.3 Other Playback Modes
The K12 speaker supports multiple playback options:
- TF Card Play: Insert a TF (Micro SD) card with your music files into the TF card slot.
- USB Port: Connect a USB drive with music files to the USB port.
- AUX Mode: Use an AUX cable (not included) to connect external audio devices via the AUX port.
- Type-C Charge: The Type-C port is primarily for charging but can also be used for data transfer if supported by the connected device.
Figure 4: Multiple playback modes and compatible apps.
3. Operating Instructions
3.1 Speaker Controls
- ON/OFF: Long press the power button to turn the speaker on or off.
- Play/Pause: Short press the Play/Pause button to control music playback.
- Volume Control: Use the VOL+ and VOL- buttons to adjust the speaker volume.
- Next/Previous Track: Short press VOL+ for next track, VOL- for previous track.
- Mode Selection: Press the 'Mode' button to switch between Bluetooth, TF card, USB, and AUX modes.
- Lights: The speaker features dynamic disco lights that flash with the music.
- ECHO: Adjust the echo effect for vocals using the ECHO button.
3.2 Microphone Controls
- Power ON/OFF: Long press the power button on the microphone to turn it on or off.
- Microphone Volume: Use the Microphone VOL+ and VOL- buttons to adjust the microphone's output volume (5 levels).
- Magic Sounds (Voice Changer): Short press the 'Magic Sounds' button to cycle through 5 voice effects: Monster, Baby, Female Voice, Male Voice, and Original.
- Remove/Restore Music Vocals: Long press the 'Remove/Restore Music Vocals' button to eliminate or restore the original vocals from a song, allowing you to sing along to the instrumental track.
Figure 5: Multi-function microphone features.
Figure 6: Fun voice changer and controllable lights.
Figure 7: One-key vocal elimination feature.
4. Maintenance
- Cleaning: Use a soft, dry cloth to clean 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.
- Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, even if not in use for extended periods.
- Water Exposure: This device is not waterproof. Avoid exposure to water or high humidity.
5. Troubleshooting
- No Power: Ensure the device is fully charged. Connect to a power source and try again.
- Cannot Connect via Bluetooth:
- Make sure the speaker is in pairing mode.
- Turn off and on Bluetooth on your device.
- Ensure your device is within the 50-foot range.
- Forget the device in your Bluetooth settings and try pairing again.
- No Sound from Microphone:
- Ensure the microphone is powered on and charged.
- Check microphone volume levels on the microphone itself.
- Ensure the microphone is properly paired with the speaker.
- Poor Sound Quality:
- Ensure the speaker is not too far from the audio source (Bluetooth).
- Check for interference from other electronic devices.
- Adjust the ECHO settings on the speaker.
- Lights Not Working: Check if the light function is enabled on the speaker.
6. Specifications
Figure 8: Detailed Product Parameters.
| Feature | Specification |
|---|---|
| Brand Name | HAOMUREN |
| Model Number | K12 Mini Bluetooth Speaker |
| Style | Handheld Microphone |
| Use | Karaoke Microphone |
| Transducer | Condenser Microphone |
| Set Type | Karaoke Player Sets |
| Communication | Wireless (Bluetooth 5.3) |
| Polar Patterns | Cardioid |
| Diaphragm | S-Mall |
| Package | Yes |
| Built-in Battery | Yes (Large capacity lithium battery, 1500mAh) |
| Power Output | 5W |
| Charging Port | Type-C |
| Frequency Range | 90Hz - 18KHz |
| Play Time | 6-10 hours |
| Charging Time | 2-3 hours |
| Speaker Dimensions (approx.) | 8.7 cm (H) x 8.5 cm (W) x 6.5 cm (D) |
| Microphone Dimensions (approx.) | 13 cm (H) x 2.5 cm (D) |
| Speaker Weight | 290g |
| Microphone Weight | 75g |
| Color Options | Off-white, Sakura Pink, Sky Blue |
| Origin | Mainland China |
| Certification | CE, FCC, RoHS |
7. Warranty and Support
For warranty information and customer support, please refer to the seller's official store or contact HAOMUREN customer service directly. Keep your purchase receipt for any warranty claims.
8. User Tips
- Maximize Battery Life: For longer sessions, consider charging the device during breaks or using a power bank.
- Experiment with Voice Effects: The 5 voice effects can add a lot of fun to your karaoke sessions. Try them out with different songs!
- Vocal Elimination: Use the one-key vocal elimination feature to practice singing your favorite songs without the original artist's voice.
- Portable Fun: The compact size and lightweight design make it perfect for taking to parties, picnics, or on trips.
