# Portable wireless speaker kruger & matz Music Box Maxi KM0557

**URL:** https://aio.lv/en/product--kruger-matz-km0557--4515136
**Data updated:** 2026-03-11 11:46 (EET)
**Category:** Portable Speakers
**Manufacturer:** kruger & matz
**Manufacturer code:** KM0557
**EAN:** 5901890061254
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 35.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kruger-matz-km0557--4515136

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

kruger & matz Music Box Maxi KM0557 is a portable wireless speaker designed for mobile audio playback. It connects via Bluetooth for hands-free streaming from smartphones and tablets, offers a compact form factor for easy transport, and supports rechargeable battery operation for use at home, outdoors, or on the go. Suitable for casual listening and small gatherings.

## Long description

The kruger & matz Music Box Maxi KM0557 is a portable wireless speaker designed for mobile audio playback with Bluetooth 4.2 connectivity. Compact enough for transport yet built to deliver up to 10 W of audio power, this speaker supports MP3 format playback, FM radio reception and wired connections via AUX and USB. A rechargeable 3.7 V / 2400 mAh battery provides untethered use at home, outdoors or on the go, while the TWS function allows pairing two compatible units for wider stereo coverage.
Advantages
This model combines Bluetooth streaming, FM tuner and multiple wired inputs in a single compact housing, enabling flexible playback options from smartphones, tablets, USB drives or line-level sources. The rechargeable battery and micro USB charging keep operation portable and convenient. TWS pairing increases soundstage without complex setup, and the integrated microphone input supports basic voice or karaoke use.
Suitable for
Casual home listening and background music in small rooms
Outdoor and on-the-go use such as picnics or small gatherings
Listening to FM radio or MP3 files from USB drives
Temporary voice or karaoke setups using the mic input
Key specifications
Output power: 10 W total
Speaker configuration: 2 x 8" + 1" drivers
Impedance: 3 Ω
Frequency response: 80 Hz – 16 kHz
Signal-to-noise ratio: 80 dB
Bluetooth version: 4.2 with wireless streaming
TWS function for pairing two speakers
FM tuner range: 87.50 – 108.00 MHz
Supported audio format: MP3
Inputs: AUX (3.5 mm), mic input (6.3 mm jack), USB 2.0, micro USB charging
Battery: rechargeable 3.7 V / 2400 mAh, power supply 5 V / 2 A
Dimensions: 230 x 220 x 590 mm; Weight: 2850 g
How to use
Charge the speaker using the micro USB socket and a 5 V / 2 A power source before first use. For wireless playback, enable Bluetooth on your smartphone or tablet, select the device named for the speaker in the Bluetooth menu and start streaming. To play files from a USB drive, insert a compatible MP3-formatted USB stick into the USB port. For radio listening, switch to FM mode and tune to the desired station. For wired connections, use the AUX input or plug a microphone into the 6.3 mm mic jack. To expand stereo coverage, enable the TWS function and follow pairing steps to connect two compatible speakers.
Usage recommendations
Place the Music Box Maxi on a stable surface and avoid obstructing the speaker drivers to maintain sound clarity. Keep the battery charged for reliable portable use and use the TWS function for larger areas. For prolonged loud playback, monitor battery level and connect the speaker to external power when possible to preserve battery life.

## FAQ

### How much does the kruger & matz Music Box Maxi KM0557 speaker cost, and is it available for purchase?

The price is 42.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 494 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All kruger & matz products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized kruger & matz service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4515136/18873795_large.webp