Krüger & Matz KM0529 Portable Bluetooth Speaker User Manual
Introduction
Thank you for purchasing the Krüger & Matz KM0529 Portable Bluetooth Speaker. This manual provides important information regarding the safe and efficient operation of your device. Please read it thoroughly before use and retain it for future reference.
Important Safety Instructions
- Read these instructions carefully.
- Keep these instructions in a safe place.
- Heed all warnings.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Package Contents
Please check that the following items are included in your package:
- Krüger & Matz KM0529 Portable Bluetooth Speaker
- USB Charging Cable
- User Manual
Product Overview
Familiarize yourself with the various parts and controls of your KM0529 speaker.

Image 1: Control Panel and Ports
This image displays the rear control panel of the Krüger & Matz KM0529 speaker, featuring the DC5V charging port, USB port, MicroSD card slot, AUX input, and playback control buttons (Previous/Volume Down, Play/Pause/Mode, Next/Volume Up, and Power ON/OFF).

Image 2: Top View with Carry Handle
This image shows the top section of the Krüger & Matz KM0529 speaker, highlighting the integrated carry handle for portability and the speaker grille.
Control Panel Functions:
- DC5V Port: For charging the speaker.
- USB Port: For playing audio from a USB flash drive.
- MicroSD Card Slot: For playing audio from a MicroSD card.
- AUX Input: For connecting external audio devices via a 3.5mm audio cable.
- OFF/ON Switch: Power switch for the speaker.
- Play/Pause/Mode Button: Press to play/pause audio. Long press to switch between modes (Bluetooth, FM, USB, MicroSD, AUX).
- Previous/Volume Down Button: Press to go to the previous track. Long press to decrease volume.
- Next/Volume Up Button: Press to go to the next track. Long press to increase volume.
Setup
Initial Charging
- Before first use, fully charge the speaker.
- Connect the provided USB charging cable to the DC5V port on the speaker.
- Connect the other end of the USB cable to a compatible USB power adapter (5V/1A, not included) or a computer's USB port.
- The charging indicator (if available, usually an LED) will illuminate during charging and turn off or change color when fully charged.
- A full charge takes approximately 2-3 hours.
Operating Instructions
Power On/Off
- To power on the speaker, slide the OFF/ON switch to the "ON" position.
- To power off the speaker, slide the OFF/ON switch to the "OFF" position.
Bluetooth Mode
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED (if available) and an audible prompt.
- On your mobile device (smartphone, tablet), enable Bluetooth and search for available devices.
- Select "KM0529" (or similar name) from the list of devices.
- Once paired, the speaker will emit an audible confirmation, and the LED indicator will stop flashing.
- You can now play audio from your device through the speaker.
- The effective Bluetooth range is up to 10 meters (33 feet).
FM Radio Mode
- Turn on the speaker.
- Press and hold the Play/Pause/Mode button to switch to FM Radio mode.
- In FM mode, press the Play/Pause/Mode button once to auto-scan and save available FM stations.
- Use the Previous and Next buttons to navigate between saved stations.
USB / MicroSD Card Playback
- Turn on the speaker.
- Insert a USB flash drive or a MicroSD card (with MP3 audio files) into the respective port.
- The speaker will automatically detect the storage device and begin playing audio. If not, press and hold the Play/Pause/Mode button to switch to USB or MicroSD mode.
- Use the Previous and Next buttons to change tracks.
- Press the Play/Pause/Mode button to play or pause.
AUX Input Mode
- Turn on the speaker.
- Connect one end of a 3.5mm audio cable (not included) to the AUX input port on the speaker.
- Connect the other end of the audio cable to the headphone jack or audio output of your external device.
- The speaker will automatically switch to AUX mode. If not, press and hold the Play/Pause/Mode button to switch to AUX mode.
- Control playback and volume from your external device.
Volume Control
- Long press the Next button to increase the volume.
- Long press the Previous button to decrease the volume.
Charging the Speaker
The speaker is equipped with a built-in 1500 mAh rechargeable battery. When the battery is low, the speaker may emit an audible warning or the sound quality may degrade.
- Connect the USB charging cable to the DC5V port on the speaker.
- Connect the other end of the USB cable to a 5V/1A USB power source.
- The charging indicator will show the charging status.
- Charging time is approximately 2-3 hours for a full charge.
- A fully charged speaker provides up to 2 hours of playback at full volume. Battery life may vary with volume level and audio content.
Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners, waxes, or solvents.
- Storage: When not in use for extended periods, store the speaker in a cool, dry place.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
- Water Exposure: This speaker is not waterproof. Avoid exposure to water or excessive moisture.
- Temperature: Do not expose the speaker to extreme temperatures (hot or cold).
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Battery is depleted. | Charge the speaker fully. |
| No sound. | Volume is too low or muted. Incorrect mode selected. Device not paired (Bluetooth). | Increase volume. Ensure correct mode (Bluetooth, FM, USB, MicroSD, AUX) is selected. Re-pair Bluetooth device. |
| Bluetooth pairing fails. | Speaker is not in pairing mode. Device is too far. Interference. | Ensure speaker is in Bluetooth pairing mode. Move device closer to speaker (within 10m). Turn off other Bluetooth devices. |
| Poor FM radio reception. | Weak signal. Location interference. | Relocate the speaker to an area with better reception. Extend the antenna if available (not explicitly mentioned, but common). |
| USB/MicroSD playback not working. | Incorrect file format. Corrupted files. Storage device not properly inserted. | Ensure files are in MP3 format. Check for corrupted files. Re-insert USB drive/MicroSD card. |
Specifications
| Feature | Specification |
|---|---|
| Brand | Krüger&Matz |
| Model | KM0529 |
| Connectivity Technology | Bluetooth, Auxiliary, USB |
| Bluetooth Version | 2.1 |
| Bluetooth Range | Up to 10 m (33 ft) |
| Bluetooth Profiles | A2DP, AVRCP |
| Speaker Type | Portable Bluetooth Speaker |
| Speaker Diameter | 4 inches |
| Output Power | 12 W |
| Impedance | 4 Ohm |
| Frequency Response | 100 Hz ~ 20 kHz |
| Signal-to-Noise Ratio (S/N) | ~ 60 dB |
| THD (Total Harmonic Distortion) | ~ 20 % |
| Card Reader | MicroSD |
| USB Port | Yes |
| AUX Input | Yes |
| Power Source | Battery Powered |
| Battery Type | 1 Lithium-ion Battery (included) |
| Battery Capacity | 1500 mAh |
| Charging Voltage | 5 V / 1 A |
| Playback Time | Up to 2 hours (at full volume) |
| Control Method | Touch (buttons) |
| Color | Black |
| Item Dimensions (DxWxH) | 7.9D x 7.5W x 19H cm |
| Item Weight | 1.07 Kilograms |
| UPC / GTIN | 05901890022644 |
Warranty and Support
Warranty Information
This Krüger & Matz KM0529 speaker comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and material faults under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, warranty claims, or further information, please contact Krüger & Matz customer support through their official website or your local retailer.
Manufacturer: Lechpol Electronics



