Headset Defender FreeMotion B540

Name: Headset Defender FreeMotion B540 63540
Brand: DEFENDER
SKU: 4359756
Price: 25.49 EUR
Availability: InStock

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Short 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.

Available for order: 8 pcs.

Warranty: 2 Years

SKU: 4359756

Manufacturer: DEFENDER

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Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

05.10.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

08.10.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 0.37 kg)

Parcel couriers

Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa

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From 1.99 €

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Payment Methods:

Bank transfer, Bank cards on-line, Apple Pay, Google Pay

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Product information

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

Ear coupling: Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.: Supraaural
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.: Wireless
Headset type: A headset is headphones combined with a microphone, or one headphone with a microphone. Headsets provide the equivalent functionality of a telephone handset but with hands-free operation. Types of headsets include single earpiece (monaural) and double earpiece.: Binaural
Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).: Calls/Music
Product type: The sub-category of the product.: Headset
Product colour: The colour e.g. red, blue, green, black, white.: Black
Wearing style: The way in which the device is worn.: Head-band

All features

Certificates

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.: RoHS, CE

Packaging content

Quantity: The number of products there are.: 1

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.: 0.2 kg
Height: The measurement of the product from head to foot or from base to top.: 170 mm
Depth: The distance from the front to the back of something.: 155 mm
Width: The measurement or extent of something from side to side.: 80 mm

Battery

Continuous audio playback time: Number of hours on average for continuous play. This is dependent on the device battery capacity.: 10 h
Battery capacity: A measure of the charge stored by the battery. Determined by the mass of active material contained in the battery.: 400 mAh
Battery type: Description of battery supplied with the product, such battery form factor (e.g. AA/AAA).: Built-in battery
Battery operated:: Yes

Microphone

Microphone sensitivity:: -42 dB
Microphone frequency: The range of frequencies (low to high sounds) that the microphone can pick up (detect).: 100 - 16000

Headphones

Driver unit:: 40 mm
Headphone sensitivity:: 118 dB
Headphone frequency: The range of frequencies (low to high sounds) that the headphones can produce.: 20 - 20000
Acoustic system:: Closed
Ear coupling: Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.: Supraaural

Ports & interfaces

Wireless range:: 10 m
Frequency band: A small section of the spectrum of radio communication frequencies, in which channels are usually used or set aside for the same purpose e.g.for a channel on FM radio; for mobile networks to communicate with mobile phones.: 2.402 - 2.48
RF connectivity:: Yes
Bluetooth profiles:: HSP, HFP, AVRCP, A2DP
Bluetooth: Bluetooth is a low-power radio technology developed to replace the cables and wires currently used to link or connect electronic devices such as personal computers, printers, and a wide variety of handheld devices including mobile phones. Because it uses radio-wave connectivity, a Bluetooth-enabled device has a constant, established connection to whatever browser it uses. This saves the user the trouble of logging on to check for emails or news updates, for example.: Yes
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.: Wireless

Performance

Compatible memory cards: Types of memory cards which can be used with this product.: MicroSD (TransFlash)
Foldable: The product can be folded and so can be stored/transported more easily.: Yes
Control type: The way in which the device is controlled.: Buttons
Control unit type:: On-ear control unit
Volume control:: Button
Operating keys:: Volume -, Volume +, Track >, Play/pause, Answer/end call
Product colour: The colour e.g. red, blue, green, black, white.: Black
Headset type: A headset is headphones combined with a microphone, or one headphone with a microphone. Headsets provide the equivalent functionality of a telephone handset but with hands-free operation. Types of headsets include single earpiece (monaural) and double earpiece.: Binaural
Recommended usage: What the product should be used for, and how it should be used (e.g. ambient temperature).: Calls/Music
Wearing style: The way in which the device is worn.: Head-band
Product type: The sub-category of the product.: Headset

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Instructions

defender-63540-4359756.pdf

Description

Instructions

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Customer questions

FAQ

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

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 05.10.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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, headset type, recommended usage, product type, 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.

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Headset Defender FreeMotion B540

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

Certificates

Packaging content

Weight & dimensions

Battery

Microphone

Headphones

Ports & interfaces

Performance

Instructions

Description

Instructions

Similar products

Product comparison

Customer reviews

Customer questions

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

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

What payment options are available?

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

What is the warranty period?

Can the product be returned after purchase?

Where should I contact for warranty service?

How can I tell if this product suits my needs?

Where can I download the instructions for Headset Defender FreeMotion B540?