Introduction
Thank you for purchasing the RockJam Singcube 5 Watt Bluetooth Karaoke Machine. This portable karaoke system is designed to provide hours of entertainment with its powerful 5-watt speaker, dual microphones, voice change effects, and dynamic LED lights. It features versatile connectivity options including Bluetooth and AUX input, allowing you to easily connect to various smart devices and TVs. This manual will guide you through the setup, operation, and maintenance of your Singcube to ensure optimal performance and enjoyment.

Image: The RockJam Singcube karaoke machine, showcasing its compact design, front panel with controls, LED lights, and two wired microphones. A smartphone is docked on top, displaying song lyrics.
Safety Information
- Read all instructions before operating the device.
- Keep the device away from water and moisture.
- Do not expose to extreme temperatures or direct sunlight.
- Use only the provided power adapter for charging.
- Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified personnel.
- Keep out of reach of small children to prevent choking hazards from small parts.
- Ensure proper ventilation around the unit during operation.
Package Contents
Please check that all items listed below are included in your package:
- RockJam Singcube Karaoke Machine
- 2 x Wired Microphones
- Auxiliary Cable
- USB Charging Cable (Note: Power adapter not always included, use a standard 5V USB adapter)
- User Manual (This document)
Product Overview
Familiarize yourself with the various parts and controls of your RockJam Singcube.

Image: Front view of the RockJam Singcube, highlighting the main control panel with volume, mode, and track navigation buttons, along with the central light display and vertical LED strips.

Image: Rear view of the RockJam Singcube, showing the 'AUDIO IN' port, 'DC 5V LED' charging port, and the power switch.

Image: Close-up of the top panel controls on the RockJam Singcube, featuring knobs for 'ECHO' and 'MIC VOL', and input jacks for 'MIC1' and 'MIC2'.
Control Panel Features:
- VOL+ / VOL-: Adjust master volume.
- MODE: Switch between Bluetooth and AUX input modes.
- Previous / Play/Pause / Next: Control music playback.
- ECHO: Adjust the echo effect for microphones.
- MIC1 / MIC2: Microphone input jacks.
- MIC VOL: Adjust microphone volume.
- AUDIO IN: 3.5mm AUX input jack.
- DC 5V LED: Power input for charging.
- Power Switch: On/Off switch.
Setup
- Charging the Unit: Connect the provided USB charging cable to the DC 5V LED port on the back of the Singcube and plug the other end into a standard USB power adapter (not always included) or a computer USB port. The LED indicator will show charging status. A full charge provides up to four hours of playback.
- Connecting Microphones: Insert the plugs of the two wired microphones into the MIC1 and MIC2 jacks on the top panel of the Singcube.
- Power On: Flip the power switch on the back of the unit to the 'ON' position. The unit will power on and the LED lights will activate.
Operating Instructions
Bluetooth Playback
- Ensure the Singcube is powered on.
- Press the MODE button until the 'BT' indicator light is illuminated, indicating Bluetooth mode.
- On your smart device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "RockJam Singcube" from the list of devices to pair. A confirmation sound will indicate successful pairing.
- Once connected, you can play music from your device, and the audio will stream through the Singcube. Use the playback controls on the Singcube or your device to manage tracks.
AUX Input Playback
- Ensure the Singcube is powered on.
- Connect one end of the provided 3.5mm auxiliary cable to the 'AUDIO IN' port on the back of the Singcube.
- Connect the other end of the auxiliary cable to the headphone jack or audio output of your external audio device (e.g., MP3 player, TV, computer).
- Press the MODE button until the 'AUX' indicator light is illuminated, indicating AUX mode.
- Play music from your external device. The audio will be routed through the Singcube.
Microphone Usage and Effects
- Microphone Volume: Adjust the MIC VOL knob on the top panel to control the volume of the microphones.
- Echo Effect: Turn the ECHO knob on the top panel to add or reduce the echo effect to your vocals.
- Voice Change Effects: The Singcube features built-in voice change effects. While singing, experiment with the MODE button or dedicated voice effect buttons (if present, refer to specific model variations) to cycle through different voice modifiers.
LED Lights Operation
- The built-in LED lights automatically activate when the unit is powered on.
- The lights are designed to pulse and change in time with the music, creating a dynamic visual effect.
- To turn the LED lights on or off, locate the dedicated light switch or function (if available, otherwise they are always on with power).
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the Singcube. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: For optimal battery life, charge the unit fully before long periods of storage and recharge it every few months if not in regular use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit does not turn on. | Battery is depleted. Power switch is off. | Charge the unit fully. Ensure the power switch is in the 'ON' position. |
| No sound from speaker. | Volume is too low. Incorrect mode selected. Device not connected properly. | Increase master volume (VOL+). Press MODE to select correct input (BT/AUX). Reconnect Bluetooth or AUX cable. |
| Microphones not working. | Microphone volume (MIC VOL) is too low. Microphones not fully plugged in. | Increase MIC VOL. Ensure microphones are securely plugged into MIC1/MIC2 jacks. |
| Bluetooth connection issues. | Device too far from Singcube. Singcube not in pairing mode. Interference. | Move device closer to Singcube. Ensure Singcube is in Bluetooth mode (BT indicator on). Turn off other Bluetooth devices nearby. Try unpairing and re-pairing. |
| Echo effect is too strong/weak. | ECHO knob setting. | Adjust the ECHO knob to your desired level. |
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 19 x 18 x 18 cm |
| Item Weight | 1.55 kg |
| Model Number | RJSC01-BK |
| Colour | Black |
| Speaker Wattage | 5 watts |
| Power Source | Battery Powered |
| Compatible Devices | Television, Smartphone |
| Connector Type | 3.5 mm Jack (AUX) |
| Included Components | Microphone, Auxiliary Cable |
| Special Features | Portable, Adjustable Microphone Sensitivity, Lightweight, Light Up Speaker, Rechargeable |
| Manufacturer | PDT |
| Country of Origin | China |

Image: Side view of the RockJam Singcube, illustrating its compact dimensions of 18 cm height and 19 cm depth.
Warranty and Support
RockJam products are manufactured to high quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official RockJam website. Please retain your proof of purchase for warranty claims.
For further assistance, you may also contact the retailer where you purchased the product.





