Headset A4Tech 2Drumtek B20

Name: Headset A4Tech 2Drumtek B20 B20-GY
Brand: A4Tech
SKU: 11181551
Price: 22.49 EUR
Availability: InStock

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Short description

The A4Tech 2Drumtek B20 is a True Wireless Stereo headset designed for calls and music. With a frequency range of 20 - 20000 Hz and a wireless range of 10 meters, these grey earbuds provide excellent sound quality and convenience. The Bluetooth connectivity ensures easy pairing with devices, making them perfect for on-the-go use.

Available at price 22.49 €: 2 pcs.

Total available for order: 4 pcs.

Warranty: 2 Years

SKU: 11181551

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Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center

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

21.09.2026 {{selectedOffer.officeDeliveryString}}

free

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

24.09.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 0.08 kg)

Parcel couriers

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

24.09.2026 {{selectedOffer.parcelStationDeliveryString}}

From 1.79 €

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Payment Methods:

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

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Product information

Description

The A4Tech 2Drumtek B20 is a True Wireless Stereo (TWS) in-ear headset designed for music playback and calls. Its hybrid diaphragm combines nano mycelium and carbon fiber to reproduce clear trebles and midrange together with deep bass. Bluetooth v5.2 ensures a stable wireless connection with devices such as PCs, laptops, mobile phones and tablets. The compact aluminum charging case provides additional runtime, bringing total playback up to 20 hours.

Advantages

The hybrid diaphragm delivers balanced sound with emphasized treble and mid frequencies and satisfying low end. Bluetooth 5.2 offers reliable connectivity and compatibility across common devices. Touch controls let you manage playback, calls and voice assistant access without using a paired device. Quick pairing reconnects the earbuds automatically when removed from the case. Each earbud can operate independently for calls or single-ear use, and the IPX4 water resistance protects against sweat and light splashes.

Suitable for

Daily commute and travel
Voice calls and meetings
Exercise and outdoor activities
Casual music listening at home or work

Key specifications

Model: A4Tech 2Drumtek B20 (B20-GY)
Type: True Wireless Stereo (TWS), in-ear
Frequency response: 20 – 20,000 Hz
Connectivity: Bluetooth v5.2
Wireless range: up to 10 meters
Playback time: up to 5 hours per charge; up to 20 hours total with charging case
Water resistance: IPX4
Colour: Grey

How to use

Remove the earbuds from the charging case to power them on and initiate the first pairing with your device; subsequent removals will reconnect automatically. Use the touch-sensitive areas on the earbuds to play or pause music, skip tracks, answer or end calls and activate your device's voice assistant (Siri, Google Assistant, Alexa). Place the earbuds back into the case to recharge them; the case provides additional playtime when charged.

Usage recommendations

Charge the case and earbuds fully before first use. For best audio performance, ensure a secure in-ear fit and keep firmware and device Bluetooth drivers up to date. Avoid submerging the earbuds in water despite their IPX4 rating; clean them gently with a dry cloth and store them in the case when not in use.

Specifications

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.: True Wireless Stereo (TWS)
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.: Grey
Wearing style: The way in which the device is worn.: In-ear

All features

Packaging content

Cables included:: USB Type-A to USB Type-C
Charging case:: Yes

Weight & dimensions

Charging case weight:: 39 g
Ear pad dimensions (W x D x H):: 6 x 20 x 34
Charging case dimensions (W x D x H):: 63 x 26 x 52
Right earpiece weight:: 4 g
Left earpiece weight:: 4 g

Battery

Battery recharge time: Approximate time required to recharge the battery from completely empty to completely full: 1.5 h
Charging source: How the battery is charged.: USB
Battery recharge time (charging case):: 1.5 h
Battery technology (charging case):: Lithium
Battery capacity (charging case):: 380 mAh
Continuous audio playback time (with charging case):: 20 h
Continuous audio playback time: Number of hours on average for continuous play. This is dependent on the device battery capacity.: 5 h
Left earpiece battery capacity:: 40 mAh
Right earpiece battery capacity:: 40 mAh
Battery technology: The type of battery in the device, e.g. nickel–cadmium (NiCd).: Lithium
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

Headphones

Diaphragm material:: Carbon
Headphone sensitivity:: 102 dB
Impedance: The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.: 32 Ω
Headphone frequency: The range of frequencies (low to high sounds) that the headphones can produce.: 20 - 20000

Ports & interfaces

Wireless range:: 10 m
Bluetooth version: The type of bluetooth technology in the product e.g. Bluetooth Smart (v4.0).: 5.2
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.: True Wireless Stereo (TWS)

Performance

International Protection (IP) code: The IP code classifies and rates the degree of protection provided against the intrusion (including body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. It is published by the International Electrotechnical Commission (IEC). The digits (characteristic numerals) indicate conformity with the conditions summarized in the tables below. Where there is no protection rating with regard to one of the criteria, the digit is replaced with the letter X. an electrical socket rated IP22 is protected against insertion of fingers and will not be damaged or become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. Another example is the Sony Xperia Z Ultra, one of the first cellular phones to be IP-rated; it is rated at IP58 and marketed as "dust resistant" and can be "immersed in 1.5 meter of freshwater for up to 30 minutes".: IPX4
Protection features: Physical effects from which the product is protected e.g. water resistant, crash proof.: Water resistant
Control type: The way in which the device is controlled.: Touch
Control unit type:: On-ear control unit
Colour name:: Ash Grey
Product colour: The colour e.g. red, blue, green, black, white.: Grey
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.: In-ear
Product type: The sub-category of the product.: Headset

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Instructions

a4tech-B20-GY-11181551.pdf

Description

Instructions

a4tech-B20-GY-11181551.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH115	2	21.09.2026 Best delivery	22.49 € Best price
WH353	2	21.09.2026 Best delivery	36.49 €

22.49 €

Stock: 2

Delivery Date: 21.09.2026 Best delivery

Warehouse: WH115

36.49 €

Stock: 2

Delivery Date: 21.09.2026 Best delivery

Warehouse: WH353

Customer reviews

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Customer questions

FAQ

How much does the Headset A4Tech 2Drumtek B20 cost, and is it available for purchase?

The price is 22.49 € (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 21.09.2026 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 A4Tech 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 A4Tech 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: connectivity technology, 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 A4Tech 2Drumtek B20?

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.

Show all questions

Headset A4Tech 2Drumtek B20

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

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 A4Tech 2Drumtek B20 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 A4Tech 2Drumtek B20?