Introduction
The KitSound Cube is a compact and powerful portable Bluetooth speaker designed to deliver surprising sound quality for its size. Featuring a passive bass radiator, wireless Bluetooth connectivity, and a built-in microphone for call handling, the Cube offers a versatile audio experience. Its durable metal construction and small form factor make it ideal for on-the-go use.

What's in the Box
Please check the contents of your KitSound Cube package:
- KitSound Cube Bluetooth Speaker - Gun Metal
- 3.5 mm audio cable
- USB charging cable
- User Manual (this document)

Product Features
- Compact and Portable: Small enough to fit into a pocket, ideal for travel.
- Wireless Bluetooth Connectivity: Stream music wirelessly from your device.
- Built-in Microphone: Enables hands-free call handling.
- Passive Bass Radiator: Delivers surprising sound and bass for its size.
- Long Play Time: Up to 6 hours of continuous audio playback.
- 3.5 mm Line-in: For wired connection to non-Bluetooth devices.
- Buddy Jack Function: Connect two or more Cube speakers for increased volume.
- Durable Construction: Made from solid metal.
Setup
1. Charging the Speaker
Before first use, fully charge your KitSound Cube speaker. Connect the supplied USB charging cable to the speaker's charging port and the other end to a USB power source (e.g., computer USB port, USB wall adapter). The charging indicator light will illuminate during charging and turn off when fully charged.
2. Powering On/Off
- To power on: Press and hold the Power button until you hear an audible prompt or see the indicator light illuminate.
- To power off: Press and hold the Power button again until you hear an audible prompt or the indicator light turns off.
Operating Instructions
1. Bluetooth Pairing
To connect your KitSound Cube to a Bluetooth-enabled device:
- Ensure the speaker is powered on and in Bluetooth pairing mode (the indicator light will typically flash rapidly).
- On your smartphone, tablet, or other Bluetooth device, enable Bluetooth and search for available devices.
- Select "KS Cube" or a similar name from the list of found devices.
- Once paired, the speaker will indicate a successful connection (e.g., a solid indicator light or an audible tone).
- You can now play audio wirelessly through the KitSound Cube.

2. Call Handling
The KitSound Cube features a built-in microphone for hands-free calls when connected via Bluetooth:
- To answer an incoming call: Press the Multi-function button (usually the Play/Pause button).
- To end a call: Press the Multi-function button again.
- To reject an incoming call: Press and hold the Multi-function button.
3. Using the 3.5 mm Aux-in
For devices without Bluetooth, you can use the 3.5 mm audio cable:
- Connect one end of the supplied 3.5 mm audio cable to the AUX-in port on the KitSound Cube.
- Connect the other end of the cable to the headphone jack or audio output of your device.
- The speaker will automatically switch to AUX mode.
4. Buddy Jack Function
To connect two or more KitSound Cube speakers for enhanced sound:
- Connect the first KitSound Cube to your audio source (via Bluetooth or AUX-in).
- Using a 3.5 mm audio cable, connect the AUX-out port of the first speaker to the AUX-in port of the second speaker.
- Repeat for additional speakers.
- Audio will now play through all connected speakers.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker 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 speaker regularly, even if not in use for extended periods.
- Water Resistance: The KitSound Cube is not water-resistant. Avoid exposure to liquids.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is depleted. | Charge the speaker fully using the supplied USB cable. |
| No sound from speaker. | Volume too low; Device not connected; Incorrect input mode. | Increase volume on both speaker and connected device. Ensure Bluetooth is paired or AUX cable is properly connected. |
| Bluetooth connection unstable or fails. | Device too far; Interference; Speaker not in pairing mode. | Ensure device is within 10 meters of the speaker. Move away from other wireless devices. Re-enter pairing mode and try connecting again. |
| Poor sound quality. | Low battery; Source audio quality; Interference. | Charge the speaker. Try a different audio source or file. Reduce distance between speaker and device. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | KSCUBTGM |
| Play Time | Up to 6 hours |
| Output RMS | 3 W @ 4 ohm |
| Signal-to-Noise Ratio (S/N) | 80 dB |
| Frequency Response | 90 Hz - 20 kHz |
| Aux-in | 3.5 mm |
| Connectivity Technology | Bluetooth, Auxiliary |
| Audio Output Mode | Stereo |
| Material | Metal |
| Product Dimensions | 5 x 5 x 5 cm |
| Item Weight | 108 g |
| Battery Type | 1 Lithium Ion battery (included) |
Warranty and Support
KitSound products are designed and manufactured to the highest standards. For information regarding warranty coverage, technical support, or to register your product, please visit the official KitSound website or contact their customer service department. Please retain your proof of purchase for any warranty claims.
For further assistance, you may refer to the KitVision Store on Amazon.





