# Headset Defender FreeMotion B540

**URL:** https://aio.lv/en/product--defender-63540--4359756
**Data updated:** 2026-03-07 11:13 (EET)
**Category:** Headphones
**Manufacturer:** DEFENDER
**Manufacturer code:** 63540
**EAN:** 4714033635400
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-07 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--defender-63540--4359756

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

The Defender FreeMotion B540 is a wireless headset designed for calls and music. It features Bluetooth connectivity, a frequency range of 20 - 20000 Hz, and a wireless range of up to 10 meters. Weighing only 200 grams, it offers comfort and portability in a sleek black design.

## Long description

The Defender FreeMotion B540 is a wireless Bluetooth headset designed for calls and music. It features supra-aural ear coupling, a foldable head-band construction with a metal headband base, soft protein-foam ear pads and a compact lightweight design weighing 200 g in black finish. Connectivity options include Bluetooth wireless operation with up to 10 m range, a MicroSD card slot to play MP3 files directly from a memory card, built-in FM receiver and a 3.5 mm audio cable for wired use when the battery is discharged. On-earcup controls and a built-in microphone allow hands-free calling and simple track or volume control.
Advantages
The headset combines wireless Bluetooth convenience with alternative playback options: MicroSD card support, FM radio and a wired audio connection. Foldable construction and an adjustable headband make it portable and adaptable, while soft protein-foam ear pads and a metal reinforcement in the headband deliver a balance of comfort and durability. Built-in microphone and on-earcup controls provide straightforward call handling and media control without needing to access a phone.
Suitable for
 Wireless phone calls and video conferences
 Listening to music from a smartphone, laptop or MicroSD card
 Indoor use while moving around within up to 10 m from the source
 Travel and commuting where a compact foldable headset is required
Key specifications
 Connectivity: Bluetooth wireless with up to 10 m operating range; 3.5 mm wired input
 Frequency response: 20–20,000 Hz
 Weight: 0.2 kg
 Ear coupling: Supra-aural (on-ear)
 Wearing style: Head-band, adjustable
 Playback options: MicroSD card slot and built-in FM receiver
 Controls: Buttons on earcups for calls and media control
 Battery life: up to 10 hours of operation
 Construction: Compact foldable design with metal headband base and protein-foam ear pads
How to use
Charge the headset before first use following the supplied charging cable instructions. For Bluetooth operation, enable Bluetooth on your phone or laptop and select the headset from the device list to pair. Insert a MicroSD card to play stored MP3 files directly or switch to FM mode to listen to radio stations. Use the controls on the earcups to answer calls, play/pause or skip tracks and adjust volume. If the battery is discharged, connect the included audio cable to the headset and source device to continue listening in wired mode.
Usage recommendations
For stable wireless performance keep the paired device within 10 m and avoid obstacles that heavily block signal line-of-sight. Regularly clean ear pads with a dry cloth and avoid exposing the headset to moisture. For longer battery life, switch off the headset when not in use and charge using the original cable following manufacturer guidelines.

## Specifications

### Headphones

| Feature | Value |
|---|---|
| Headphone frequency | 20 - 20000 |
| Headphone sensitivity | 118 dB |
| Driver unit | 40 mm |
| Ear coupling | Supraaural |
| Acoustic system | Closed |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wireless |
| Wireless range | 10 m |
| Frequency band | 2.402 - 2.48 |
| Bluetooth | Yes |
| Bluetooth profiles | HSP, HFP, AVRCP, A2DP |
| RF connectivity | Yes |

### Performance

| Feature | Value |
|---|---|
| Product colour | Black |
| Volume control | Button |
| Control type | Buttons |
| Headset type | Binaural |
| Wearing style | Head-band |
| Operating keys | Volume -, Volume +, Track |
| Recommended usage | Calls/Music |
| Product type | Headset |
| Control unit type | On-ear control unit |

### Other features

| Feature | Value |
|---|---|
| Quantity | 1 |
| Continuous audio playback time | 10 h |

### Microphone

| Feature | Value |
|---|---|
| Microphone frequency | 100 - 16000 |
| Microphone sensitivity | -42 dB |

### Design

| Feature | Value |
|---|---|
| Foldable | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.2 kg |
| Height | 170 mm |
| Width | 80 mm |
| Depth | 155 mm |

### Battery

| Feature | Value |
|---|---|
| Battery type | Built-in battery |
| Battery capacity | 400 mAh |
| Battery operated | Yes |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | CE, RoHS |

### Music player

| Feature | Value |
|---|---|
| Compatible memory cards | MicroSD (TransFlash) |

## FAQ

### How much does the Headset Defender FreeMotion B540 cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 25.06.2026 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: ear coupling, connectivity technology, weight, product colour, wearing style, 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 Headset Defender FreeMotion B540?

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/4359756/62245753_large.webp