Product Overview
The BESCOST Mini Karaoke Machine NO-302 is a portable Bluetooth speaker with two wireless microphones, designed for entertainment. It features exceptional sound quality, multiple voice effects, and various connection options.

A white and gold portable karaoke machine with a speaker grille, control panel, and two matching wireless microphones.
Package Contents
- BESCOST Mini Karaoke Machine NO-302
- 2 Wireless Microphones
- USB Type-C Charging Cable
- User Manual (this document)
Setup
1. Charging the Device
Before first use, fully charge the karaoke machine and both microphones.
- Connect the provided USB Type-C cable to the charging port on the karaoke machine.
- Connect the other end to a compatible USB power adapter (not included).
- The charging indicator will illuminate. Charging time is approximately 2 hours.
- For microphones, use their respective charging ports. Charging time is also approximately 2 hours.

An illustration depicting the charging process, indicating a 2-hour charging time for the device and a play time of 4-5 hours.
2. Powering On/Off
To power on the karaoke machine, press and hold the power button until the display illuminates.
To power off, press and hold the power button again.
For microphones, press and hold the power button on each microphone to turn them on or off.
3. Microphone Pairing
The wireless microphones are pre-paired with the karaoke machine. Simply power on both the machine and the microphones, and they will connect automatically.
If pairing issues occur, ensure both devices are charged and within range. Restarting both devices may resolve the issue.
Operating Instructions
1. Bluetooth Connection
The karaoke machine uses Bluetooth 5.0 for wireless audio streaming.
- Ensure the karaoke machine is powered on.
- Activate Bluetooth on your smartphone, tablet, or other compatible device.
- Search for "BESCOST NO-302" (or similar name) in your device's Bluetooth settings.
- Select the device to pair. A confirmation sound will indicate a successful connection.

An image showing the various connectivity options for the karaoke machine: TF Card, Bluetooth 5.0, AUX input, and USB port.
2. Playing Music
The machine supports multiple audio sources:
Bluetooth:
Once connected via Bluetooth, play music from your paired device. The audio will stream through the karaoke machine.
TF Card / USB:
Insert a TF card or USB flash drive containing MP3 audio files into the respective slot. The machine will automatically detect and play the music.
AUX-in:
Connect an external audio device using a 3.5mm AUX cable (not included) to the AUX-in port. Select AUX mode on the machine if necessary.
3. Microphone Usage
Once microphones are powered on and connected, they are ready for use.
Speak or sing into the microphone. Adjust microphone volume using the VOL+ and VOL- buttons on the microphone.

A family enjoying the karaoke machine, with two individuals holding microphones and singing, demonstrating multiplayer interaction.
4. Voice Effects
The machine offers 7 fun voice effects:
- Original Sound: Standard vocal output.
- Karaoke Mode: Reduces original vocal track in music.
- Echo: Adds reverberation to vocals.
- Male Voice: Changes vocal pitch to a deeper tone.
- Female Voice: Changes vocal pitch to a higher tone.
- Kid Voice: Changes vocal pitch to a child-like tone.
- Magic Sound: Applies a unique, whimsical vocal effect.
To activate accompaniment effects, press and hold the microphone "EFF" button for 3 seconds to cycle through voice modes.

An infographic displaying the seven available voice effects: Kid, Female, Magic Sound, Original Sound, Echo, Male, and Karaoke mode, each with an illustrative icon.
5. Volume Control
Use the main volume knob on the karaoke machine to adjust the overall speaker volume.
Use the VOL+ and VOL- buttons on each microphone to adjust individual microphone volume.
The "M/VOCAL CUT" button on the machine can be used to reduce or remove the main vocal track from songs, enhancing the karaoke experience.
Maintenance
- Cleaning: Wipe the device and microphones with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Storage: Store the karaoke machine and microphones 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 regularly, even if not in use for extended periods.
- Water Exposure: This device is not waterproof. Avoid exposure to water or high humidity.

The white and gold karaoke machine displayed on a wooden surface, highlighting its retro design and dynamic LED light feature.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| No power | Battery is low or depleted. | Charge the karaoke machine and microphones fully. |
| No sound from speaker | Volume is too low; incorrect input source; device not connected. | Increase volume; ensure correct input (Bluetooth, TF, USB, AUX); re-establish connection. |
| Microphone not working | Microphone is off; battery low; not paired. | Power on microphone; charge microphone; ensure it's paired with the machine. |
| Bluetooth connection unstable | Too far from device; interference. | Move device closer to karaoke machine; avoid obstacles; disconnect and reconnect Bluetooth. |
Specifications
| Feature | Detail |
|---|---|
| Brand | BESCOST |
| Model Number | NO-302 |
| Connectivity Technology | Bluetooth 5.0 |
| Power Source | Battery Powered (1500mAh rechargeable) |
| Charging Port | USB Type C |
| Output Wattage | 10 Watts |
| Number of Microphones | 2 Wireless |
| Voice Effects | 7 (Original, Karaoke, Echo, Male, Female, Kid, Magic Sound) |
| Supported Media | TF Card, USB Flash Drive, AUX-in, Bluetooth |
| Product Dimensions | 6.3 x 5.5 x 3.9 inches (17.7 x 9.5 x 11.8 cm) |
| Item Weight | 2.27 pounds (1.03 kg) |
| Color | White |
Warranty and Support
This BESCOST product is covered by a standard manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or contact BESCOST customer support.
For technical assistance, troubleshooting, or warranty claims, please contact BESCOST customer support through their official website or the retailer where the product was purchased.