Introduction
Thank you for purchasing the Oraolo BS03 Karaoke Machine. This portable mini karaoke machine is designed to provide an immersive and enjoyable singing experience with its stereo sound, dynamic RGB lights, and dual wireless microphones. Please read this manual carefully before using the product to ensure proper operation and to maximize its lifespan.
Package Contents
Please check the box for the following items:
- Oraolo BS03 Karaoke Machine (Speaker Unit)
- 2 x Wireless Microphones
- USB-C Charging Cable
- User Manual

Image: The Oraolo BS03 Karaoke Machine, two wireless microphones, and a USB-C charging cable, as typically found in the product packaging.
Product Overview
Familiarize yourself with the components and controls of your Oraolo BS03 Karaoke Machine.

Image: The Oraolo BS03 Karaoke Machine speaker unit and its two accompanying wireless microphones.
Speaker Unit Controls and Ports:

Image: Detailed view of the speaker's control buttons and input/output ports.
- Power Button: Press and hold to turn on/off.
- Volume Controls (+/-): Adjust speaker volume.
- Mode Button (M): Switch between connection modes (Bluetooth, TF Card, USB, AUX).
- Light Mode Button: Change or turn off RGB light effects.
- Mic Priority Mode Button: Activates/deactivates mic priority.
- USB Port: For USB flash drive playback.
- TF Card Slot: For Micro SD card playback.
- AUX-in Port: For wired audio input.
- USB-C Charging Port: For charging the speaker unit.
Wireless Microphone Controls:

Image: Detailed view of the wireless microphone's buttons and features.
- Power Button: Press and hold to turn on/off.
- Volume Controls (+/-): Adjust microphone volume.
- Magic Voice Effects Button: Long press the dedicated button on the microphone to cycle through voice effects (Original, Female, Male, Baby, and Magic Sound).
- Vocal Removal Button: One click to remove vocals from a song.
Setup
- Charge the Devices: Before first use, fully charge the karaoke machine speaker and both wireless microphones using the provided USB-C cable. The charging indicator will typically turn off or change color when fully charged.
- Power On: Press and hold the power button on the karaoke machine speaker until it powers on. Do the same for both wireless microphones. The microphones should automatically pair with the speaker.
Operating Instructions
Bluetooth Connection:
- Ensure the karaoke machine is powered on and in Bluetooth mode (indicated by a voice prompt or display). If not, press the 'M' (Mode) button to switch to Bluetooth mode.
- On your device (smartphone, tablet, TV), enable Bluetooth and search for "Oraolo BS03" in the list of available devices.
- Select "Oraolo BS03" to pair. A confirmation sound will indicate successful connection.
- You can now play music from your device through the karaoke machine.

Image: The karaoke machine demonstrating multiple connection options including Bluetooth, TF card, USB-C, and AUX.
Using Microphones:
- Automatic Pairing: The microphones should automatically pair with the speaker when both are powered on.
- Microphone Volume: Use the '+' and '-' buttons on the microphone to adjust your vocal volume.
- Magic Voice Effects: Long press the dedicated button on the microphone to cycle through various voice effects: Original, Female, Male, Baby, and Magic Sound.
- Vocal Removal: Press the vocal removal button on the microphone to reduce or eliminate the original vocals from a song, allowing you to sing along.
Dynamic RGB Light Show:
- Press the Light Mode button on the speaker unit to switch between different adjustable lighting modes.
- The lights can change color with the music's beat, enhancing the karaoke experience.

Image: The karaoke machine showcasing its vibrant, beat-synced LED light display.
Other Connection Modes:
The Oraolo BS03 supports multiple playback options:
- TF Card Playback: Insert a Micro SD card (not included) with MP3 files into the TF card slot. The machine will automatically switch to TF card mode and begin playback.
- USB Flash Drive Playback: Insert a USB flash drive with MP3 files into the USB port. The machine will automatically switch to USB mode and begin playback.
- AUX-in Connection: Connect an external audio device (e.g., MP3 player, computer) to the AUX-in port using a 3.5mm audio cable (not included). Press the 'M' button to switch to AUX mode.
Charging
The Oraolo BS03 Karaoke Machine and its microphones are equipped with rechargeable batteries.
- Use the provided USB-C charging cable to charge the speaker unit. Connect one end to the speaker's USB-C port and the other end to a USB power adapter (e.g., phone charger, computer USB port).
- The microphones also charge via USB-C. Connect them individually to a power source.
- A full charge provides an impressive long playtime, suitable for extended use.
Maintenance
- Cleaning: Wipe the surface of the karaoke machine and microphones with a soft, dry cloth. 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 battery frequently. Charge the device regularly, even if not in use for extended periods.
- Water Exposure: This product is not waterproof. Avoid exposure to water or high humidity.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Device won't turn on. | Battery is low or depleted. | Charge the karaoke machine and microphones fully. |
| Microphones not connecting. | Microphones are off or out of range. | Ensure microphones are powered on and within close proximity to the speaker. Recharge if battery is low. |
| No sound from speaker. | Volume is too low; incorrect mode selected; device not connected. | Increase speaker volume. Press 'M' button to select correct input mode (Bluetooth, AUX, etc.). Reconnect Bluetooth device. |
| Poor sound quality / Distortion. | Volume too high; interference; low battery. | Reduce volume. Move away from other electronic devices. Charge the unit. |
| Bluetooth connection unstable. | Too far from connected device; interference. | Move the connected device closer to the karaoke machine. Avoid obstacles between devices. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | BS03 |
| Item Weight | 1.06 pounds (approx. 0.48 kg) |
| Product Dimensions | 5.55 x 5.59 x 3.15 inches (approx. 14.1 x 14.2 x 8 cm) |
| Batteries | 1 A battery required (included) for main unit. Microphones also rechargeable. |
| Connector Type | USB Type C (for charging) |
| Speaker Count | 2 |
| Power Source | Battery Powered |
| Connectivity | Bluetooth, Micro SD Card, USB Flash Drive, AUX-in |
| Special Features | Lightweight, Dynamic RGB Lights, Magic Voice Effects, Vocal Removal |
Warranty and Support
Oraolo products come with a standard warranty. For detailed warranty information, product support, or technical assistance, please refer to the warranty card included in your package or visit the official Oraolo website. You may also contact customer service via the contact information provided on the product packaging or purchase platform.

Image: Product label showing manufacturer details and compliance marks.