# DEFENDER Z4 wired 2.1 speakers, 11 W RMS, black, USB 5V power, 3.5 mm headphone out

**URL:** https://aio.lv/en/product--defender-65508--145946
**Data updated:** 2026-01-21 10:49 (EET)
**Category:** Speakers
**Manufacturer:** DEFENDER
**Manufacturer code:** 65508
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--defender-65508--145946

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Wired DEFENDER Z4 2.1 speakers deliver 11 W RMS with built-in amplifier and magnetically shielded drivers. Powered by USB (5 V) and featuring LED power indicator, on/off switch and 3.5 mm headphone output, they suit PC tabletop or bookshelf placement. Frequency range 200–20,000 Hz, plastic housing, recommended for desktop audio, gaming and multimedia use.

## Long description

The DEFENDER Speakers Z4 Black Wired 11 W are a compact 2.1-channel speaker system for PC use, offering a combined RMS rated power of 11 W and a frequency response of 50–20000 Hz. The wired connection delivers stable audio, and the black finish integrates easily into a desktop setup. The system includes a rear phase inverter and a power indicator for easy monitoring.
Advantages
Compact size saves desk space while providing full-range sound for everyday multimedia and gaming. USB-powered operation eliminates the need for an external power adapter. On-unit volume and bass controls allow quick adjustment without opening software. Wired connectivity ensures consistent signal transmission and minimal latency.
Suitable for
Desktop PCs and laptops with a wired audio output
Everyday music playback and video streaming
Casual gaming and voice calls
Workspaces with limited desk space
Key specifications
Audio output channels: 2.1
RMS rated power: 11 W
Frequency response: 50–20000 Hz
Connectivity: Wired (USB power)
Colour: Black
Weight: 0.7 kg
How to use
Connect the speakers to your PC or laptop audio output and plug the USB cable into a USB port for power. Use the on-unit volume and bass controls to set the desired sound level and low-frequency balance. Place the satellite speakers on either side of your monitor and position the subwoofer with the rear phase inverter accessible for any necessary phase adjustments.
Usage recommendations
For best results, position the speakers at ear level and keep the subwoofer on a stable surface. Reduce interference by keeping the speaker cables away from large power cables and wireless transmitters.

## Specifications

### Loudspeakers

| Feature | Value |
|---|---|
| Audio output channels | 2.1 |
| Woofer | Yes |
| Woofer diameter (imperial) | 3 " |
| Speaker placement | Tabletop/bookshelf |

### Audio

| Feature | Value |
|---|---|
| Speakers RMS power | 6 W |

### Amplifier

| Feature | Value |
|---|---|
| Amplifier | No |

### Subwoofer

| Feature | Value |
|---|---|
| Subwoofer RMS power | 5 W |
| Bass adjustment | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Bluetooth | No |
| USB connectivity | Yes |
| 3.5 mm connector | Yes |

### Technical details

| Feature | Value |
|---|---|
| Cord length | 1 m |
| Frequency range | 50 - 20000 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.7 kg |
| Height | 130 mm |
| Width | 251 mm |
| Depth | 100 mm |

### Power

| Feature | Value |
|---|---|
| Power source type | USB |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 820 g |
| Package type | Box |

### Performance

| Feature | Value |
|---|---|
| Product colour | Black |
| RMS rated power | 11 W |
| Housing material | Plastic |
| Recommended usage | PC |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the DEFENDER Z4 wired 2.1 speakers — 11 W cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 06.07.2026 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 DEFENDER 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 DEFENDER 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: audio output channels, connectivity technology, weight, rms rated power, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for DEFENDER Z4 wired 2.1 speakers — 11 W?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/145946/57103036_large.webp