1. Introduction
Thank you for purchasing the InAndOn 2025 Karaoke System. This advanced home karaoke system features an 18.5-inch capacitive touch screen, a vast cloud song library, and wireless microphones, designed to provide an immersive entertainment experience. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.
Key features include:
- Access to over 650,000 songs via cloud download with free weekly updates.
- Support for AI voice recognition (Mandarin voice control only).
- Capacitive touch screen for accurate and sensitive interaction.
- Integrated YouTube functionality with Android support.
- Song recording and scoring features.
- USB support for batch song addition.
- 4K HD TV output compatibility.
- Includes two UHF wireless microphones.
2. Important Safety Information
Please read all safety instructions carefully before using the product. Keep this manual for future reference.
- Do not expose the unit to rain or moisture to prevent fire or electric shock.
- Ensure proper ventilation. Do not block ventilation openings.
- Use only the power adapter supplied with the unit.
- Do not open the casing. Refer all servicing to qualified personnel.
- Keep the unit away from direct sunlight, heat sources, and strong magnetic fields.
- Avoid placing heavy objects on top of the unit.
- Disconnect the power plug during lightning storms or when unused for long periods.
3. What's in the Box
Upon unpacking, please verify that all items listed below are present and in good condition:
- 1 x InAndOn 18.5" Karaoke Machine with 4TB hard disk
- 2 x UHF Wireless Microphones
- Power Adapter
- User Manual (this document)
- Necessary cables (HDMI, RCA - may vary by package)
Note: Batteries for microphones are not included.
4. Product Overview

Figure 4.1: Front view of the InAndOn Karaoke System, showing the 18.5-inch capacitive touch screen and the two included wireless microphones.

Figure 4.2: Rear panel of the InAndOn Karaoke System, illustrating the various input and output ports including LAN, HD-OUT (HDMI), USB, DC 12V power, RECORD IN, MIC OUT, AUDIO OUT (RCA), and OPTICAL.
4.1 Main Unit (Karaoke Machine)
The main unit features an 18.5-inch capacitive touch screen for intuitive navigation and song selection. It houses the internal 4TB hard disk for song storage and the system's processing unit. The rear panel provides all necessary connection ports.
4.2 Wireless Microphones
Two UHF wireless microphones are included for vocal performance. These microphones are designed for clear audio transmission and ease of use. Each microphone requires batteries (not included) for operation.

Figure 4.3: Detailed view of the wireless microphones, highlighting features such as high fidelity sound, imported core for accurate pickup, UHF high-frequency technology, professional anti-howling design, and durable metal mesh.
5. Setup Guide
Follow these steps to set up your InAndOn Karaoke System:
5.1 Power Connection
- Connect the supplied power adapter to the "DC 12V" port on the rear of the karaoke machine.
- Plug the power adapter into a suitable wall outlet.
5.2 Audio Output Connection
The karaoke machine requires connection to an external speaker system for audio output.
- RCA/AUX Connection: Connect an RCA (red and white) cable from the "AUDIO OUT" ports on the karaoke machine to the corresponding RCA or AUX input on your speaker system.
- Optical Connection: For digital audio, connect an optical cable from the "OPTICAL" port on the karaoke machine to an optical input on your speaker system or amplifier.
5.3 Video Output Connection (Optional)
To display the karaoke interface on a larger screen (e.g., TV), use the HDMI output:
- Connect an HDMI cable from the "HD-OUT" port on the karaoke machine to an HDMI input on your TV or monitor.
5.4 Microphone Setup
- Insert appropriate batteries (not included) into each wireless microphone.
- Turn on the microphones. They should automatically pair with the karaoke system.
5.5 Network Connection
A network connection is required to access the cloud song library and YouTube.
- Wi-Fi: On the system's touch screen, navigate to network settings and connect to your Wi-Fi network. The system supports dual-band 2.4GHz/5GHz Wi-Fi.
- LAN: Alternatively, connect an Ethernet cable from the "LAN" port on the karaoke machine to your router.
6. Operating Instructions
6.1 Powering On/Off
- Power On: Press the power button located on the rear panel of the karaoke machine. The touch screen will illuminate.
- Power Off: Press and hold the power button until the system prompts you to shut down, then confirm.
6.2 Touch Screen Interface
The 18.5-inch capacitive touch screen provides the primary interface for controlling the system. Navigate by tapping icons and swiping through menus.

Figure 6.1: Core functions interface, including options for smart dual-system switching, AI voice song ordering, DSP digital mixing, song scoring, massive cloud song library, multiple song ordering methods, high-speed cloud server, recording sharing, smart song deletion, quick fast-forward/rewind, internet upgrade, USB song addition, file management, U-band wireless microphone, Wi-Fi connectivity, and language switching.

Figure 6.2: New features interface, showcasing integrated YouTube song ordering, accurate regional song rankings, various song play modes, and quick access to popular language categories.

Figure 6.3: Advanced settings interface, demonstrating multi-language switching, USB song support, pitch adjustment, song preview/fast-forward, song priority ordering, and a rich song ordering interface.
6.3 Song Selection
- Cloud Song Library: Access over 650,000 songs by tapping the "Cloud" or "Songs" icon. Songs are updated weekly.

Figure 6.4: Interface for downloading songs from the massive cloud song library, which includes popular classics, trending songs, children's songs, opera, folk songs, and more, with regular updates.
- YouTube: Select the YouTube application from the main menu to browse and play videos directly.
- USB Songs: Insert a USB drive into the USB port on the rear panel to play songs stored on the drive. The system supports batch addition of songs from USB.
- AI Voice Recognition: For Mandarin songs, use voice commands to search and select songs.
- Spell to Order: Input the first letter of each word of the song title. For example, for "My Heart Will Go On," input "MHWGO."
6.4 Song Management & Features
- Song Scoring: Enable the scoring feature to receive feedback on your vocal performance.
- Recording: Utilize the recording feature to capture your performances.
- Favorites: Add songs to your favorites list for quick access.
- Pitch Adjustment: Adjust the song's pitch to suit your vocal range.
- Volume Control: Use the on-screen controls to adjust music and microphone volumes.
- Language Switching: The system supports multiple languages including Chinese, Cantonese, English, Korean, and Japanese. Navigate to settings to change the interface language.

Figure 6.5: The new overseas version system interface, designed for international users with support for various regions including Hong Kong, Taiwan, and other international interfaces.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the touch screen and exterior of the unit. Do not use liquid cleaners or abrasive materials.
- Software Updates: The system automatically updates new songs periodically. Ensure your system is connected to the internet to receive these updates and maintain optimal performance.
- Storage: When not in use for extended periods, store the unit in a cool, dry place away from direct sunlight.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; Power outlet faulty; Power button not pressed. | Ensure power cable is securely connected. Try a different power outlet. Press the power button firmly. |
| No sound from speakers | Audio cables (RCA/Optical) not connected correctly; Speaker volume too low or muted; Incorrect audio output selected on system/speaker. | Verify audio cable connections. Increase speaker volume. Check audio output settings on the karaoke system and speaker. |
| No display on TV | HDMI cable not connected; TV input not set to correct HDMI port. | Ensure HDMI cable is securely connected. Select the correct HDMI input on your TV. |
| Microphone not working | Microphone batteries low or not inserted; Microphone not turned on; Microphone volume too low. | Replace microphone batteries. Turn on microphones. Increase microphone volume on the system. |
| Microphone audio delay | Potential audio processing latency; Interference. | Ensure all connections are secure. Try adjusting audio settings if available. Consider using alternative microphones if the issue persists. |
| Cannot connect to Wi-Fi | Incorrect Wi-Fi password; Router too far; Network issue. | Double-check Wi-Fi password. Move the system closer to the router or use a wired LAN connection. Restart your router. |
| Cloud songs not loading | No internet connection; Server issues. | Verify internet connection. Try again later if it's a server-side issue. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | KD9MAX |
| Brand | InAndOn |
| Screen Size | 18.5 inches |
| Screen Type | Capacitive Touch Screen |
| Storage | 4TB Hard Disk |
| Operating System | Android 10.0 |
| Connectivity | Dual-band Wi-Fi (2.4GHz/5GHz), Bluetooth 5.2, LAN |
| Microphones | 2 x UHF Wireless Microphones |
| Compatible Devices | Speaker, TV |
| Connector Types | HDMI, RCA, Optical, USB |
| Power Source | Plug In Electric |
| Voltage | 230 Volts (AC) |
| Item Weight | 12.32 pounds |
| Product Dimensions | 11 x 17.5 x 7.1 inches |
| Color | Black |

Figure 9.1: Internal hardware specifications, detailing powerful core performance with DDR4 2G high-speed memory, dual-band Wi-Fi for stable and fast transmission, Android 10.0 operating system for stability and compatibility, and Bluetooth 5.2 for stable wireless transmission.
10. Warranty and Support
The InAndOn Karaoke System comes with a one-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact the manufacturer or your point of purchase. Refer to the contact information provided on the product packaging or the official InAndOn website.


