1. Introduction
Thank you for choosing the PPMIC MS78 Karaoke Machine. This portable system is designed to provide a comprehensive audio experience with its powerful speaker, two wireless microphones, and versatile connectivity options. This manual will guide you through the setup, operation, and maintenance of your device to ensure optimal performance and enjoyment.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1 × Karaoke Machine
- 2 × Rechargeable Microphones
- 2 × Data Cables (USB-C charging cables)
- 1 × Remote Control
- 1 × Shoulder Strap
- 1 × User Manual (this document)

Image: The PPMIC MS78 Karaoke Machine and its included accessories, including the main unit, two wireless microphones, remote control, and various cables.
3. Product Overview
3.1 Main Unit Controls and Ports

Image: Detailed view of the control panel, showing knobs for MIC VOL, Echo, Treble, Bass, and Master volume, along with buttons for mode selection, sound effects, and playback controls.
- Power Button: Turns the unit on or off.
- USB Port (5V/1.5A): For USB drive playback and charging external devices.
- SD Card Slot: For TF card playback.
- MIC VOL Knob: Adjusts the volume of the microphones.
- Echo Knob: Adjusts the echo effect for microphones.
- Treble Knob: Adjusts the high-frequency sound output.
- Bass Knob: Adjusts the low-frequency sound output.
- Master Knob: Adjusts the overall system volume.
- Mode Button: Switches between input modes (Bluetooth, AUX, USB, TF Card).
- Priority MIC Button: Prioritizes microphone audio over music.
- MIC Mode Button: Activates Vocal Master Mode (AI pitch correction).
- Accompany Button: Activates Accompaniment Mode (partially removes vocals from songs).
- Sound Effect Buttons: Trigger various sound effects (Giggle, Applause, Gunshot, Boos, Laughter, Yell, Whistling, Crow).
- Prev/Next Buttons: Navigate tracks during playback.
- Play/Pause Button: Controls media playback.
- AUX Input: 3.5mm audio input for external devices.
- Earphone Jack: 3.5mm audio output for headphones.
- MIC 1 / MIC 2 Inputs: For wired microphones (if used, wireless mics are included).
- Live Output: For live streaming connectivity.
3.2 Wireless Microphones
The system includes two wireless microphones for vocal performance. Each microphone features a display showing frequency and battery status, along with power and function buttons.

Image: The two wireless microphones provided with the PPMIC MS78 system, highlighting their individual displays and compact design.
4. Setup
4.1 Charging the Device
Before first use, fully charge the karaoke machine and both wireless microphones.
- Karaoke Machine: Connect the provided USB-C cable to the charging port on the unit and to a 5V/1A-2A USB-A power adapter (not included). A full charge takes approximately 4-5 hours.
- Wireless Microphones: The microphones are rechargeable. Use the provided data cables to charge them. Ensure they are fully charged for stable performance.
Important: Do not use fast charging adapters. Only use a 5V/1A-2A USB-A power adapter for charging the main unit.

Image: Visual representation of the karaoke machine's power specifications, including its 7000mAh battery and Type-C charging port.
4.2 Powering On/Off
Press and hold the Power button on the main unit to turn it on or off. Power on the wireless microphones by pressing their respective power buttons.
4.3 Microphone Pairing
The wireless microphones are designed to automatically pair with the main unit upon powering on. If pairing issues occur, ensure both devices are charged and within range (up to 30 meters).

Image: Illustration of the wireless microphone's signal range and the physical dimensions of the karaoke machine.
5. Operating Instructions
5.1 Basic Playback
The MS78 supports multiple playback modes:
- Bluetooth: Press the "Mode" button until "bt" appears on the display. Enable Bluetooth on your device (smartphone, tablet, TV) and select "MS78" from the list of available devices.
- USB Drive: Insert a USB flash drive into the USB port. The unit will automatically switch to USB mode and begin playing compatible audio files.
- TF Card: Insert a TF (microSD) card into the SD card slot. The unit will automatically switch to TF card mode and play compatible audio files.
- AUX Input: Connect an external audio device (e.g., TV, computer) to the AUX input using a 3.5mm audio cable. Press the "Mode" button to select AUX mode.
- Live Output: Connect to a live streaming device via the Live output port for broadcasting your performance.
Use the "Prev", "Next", and "Play/Pause" buttons on the unit or remote control to manage playback.

Image: The karaoke machine in use, demonstrating its versatility with various connection types and devices.
5.2 Sound Adjustments
Utilize the knobs on the control panel to fine-tune your audio:
- MIC VOL: Adjusts the volume of the connected microphones.
- Echo: Controls the depth of the echo effect applied to microphone vocals.
- Treble: Increases or decreases the high-frequency sounds for clearer vocals and instruments.
- Bass: Increases or decreases the low-frequency sounds for richer bass.
- Master: Adjusts the overall output volume of the karaoke machine.

Image: An exploded view of the speaker system, highlighting the dual woofers and tweeters responsible for the 300W audio output.
5.3 Special Features
- Vocal Master Mode (AI Pitch Correction): Press the "MIC Mode" button on the control panel to activate this feature. It automatically adjusts off-key vocals for a more refined sound.
- Accompaniment Mode: Press the "Accompany" button to partially remove vocals from songs, allowing you to sing along with instrumental tracks.
- RGB Lights: The unit features integrated RGB lights that can be controlled to enhance the ambiance. Refer to the remote control instructions for specific light mode adjustments.

Image: The karaoke machine showcasing its dynamic RGB LED lighting effects.
6. Connectivity Options
The PPMIC MS78 offers diverse connectivity to suit various devices and scenarios:
- Bluetooth 5.3: Provides a stable and efficient wireless connection for streaming audio from smartphones, tablets, and compatible smart TVs.
- AUX Input: For wired connection to devices with a 3.5mm audio output, including TVs, computers, and older audio players.
- USB & TF Card: Direct playback of audio files from USB flash drives and TF (microSD) cards.
- Live Output: Connect to external recording or streaming equipment for live broadcasts.

Image: The karaoke machine connected wirelessly to a smart TV, demonstrating its TV connectivity feature.
7. Troubleshooting
If you encounter issues with your PPMIC MS78 Karaoke Machine, please refer to the following common solutions:
| Problem | Solution |
|---|---|
| Machine will not charge. | Ensure you are using a 5V/1A-2A USB-A power adapter. This machine does not support fast charging. Check the charging cable connection. |
| Microphone is not working. | First, replace the AA batteries in the microphone. Ensure the microphone is powered on and within range of the main unit. If the issue persists, contact customer support for a replacement. |
| No sound from the speaker. | Check the Master volume knob and ensure it is turned up. Verify the correct input mode is selected (Bluetooth, AUX, USB, TF Card). Ensure the source device's volume is also turned up. |
| Bluetooth connection issues. | Ensure the machine is in Bluetooth mode ("bt" on display). Turn off and on Bluetooth on your device. Forget "MS78" from your device's Bluetooth list and re-pair. Ensure no other devices are connected to the MS78. |
| Recording function only captures vocals. | Due to music copyright restrictions, karaoke machines typically record only microphone audio, not background music, when the recording function is enabled. This is standard for most devices on the market. |
| Unwanted loud welcome sound. | Currently, there is no option to disable or adjust the volume of the welcome sound when the unit is powered on. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | MS78 |
| Mounting Type | Tabletop |
| Power Source | 7000 mAh Battery Powered |
| Connector Type | Aux, USB Type C |
| Material | Leather |
| Item Weight | 6.2 Pounds (2.8 kg) |
| Number of Channels | 2 |
| Audio Input | Microphone |
| Recommended Uses | Home Parties, Live Streams, Outdoor Activities |
| Frequency Response | 30 KHz |
| Product Dimensions (L x W x H) | 5.4 x 11.2 x 11.3 inches (13.7 x 28.4 x 28.7 cm) |
| Connectivity Technology | AUX, Bluetooth 5.3, Live, TF Card, USB |
| Color | Black |
| Compatible Devices | Guitar, Laptop, Smartphone, Tablet, Television |
9. Maintenance
To ensure the longevity and optimal performance of your PPMIC MS78 Karaoke Machine, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the unit and microphones. Do not use liquid cleaners or abrasive materials.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: For extended storage, charge the battery to approximately 50% every three months to prevent deep discharge.
- Avoid Water: This device is not waterproof. Keep it away from water and high humidity.
- Handle with Care: Avoid dropping or subjecting the unit and microphones to strong impacts.
10. Warranty and Support
PPMIC offers a 36-month (3-year) warranty for the MS78 Karaoke Machine, ensuring peace of mind and professional support.
- Warranty Coverage: The warranty covers manufacturing defects and malfunctions under normal use for 36 months from the date of purchase.
- Customer Service: For any issues or inquiries, please contact PPMIC customer service via Amazon message. Our support team is available to assist you.
- Product Registration: You can register your product and access support by messaging us through Amazon.
11. Safety Information
Please read and follow these safety precautions to prevent damage to the device or injury to yourself:
- Do not disassemble, repair, or modify the device yourself.
- Keep the device away from heat sources, direct sunlight, and flammable materials.
- Do not expose the device to rain or moisture.
- Use only the specified charging voltage and current (5V/1A-2A).
- Keep out of reach of children.
- Dispose of batteries and electronic components responsibly according to local regulations.