RADIO ONE
The radio alarm clock with Teufel sound
129,99 €
99,99 €
Lowest recent price
169,99 €
Original price
- Deal
Highlights
Why we love this product
In its new, fourth generation, the BOOMSTER comes with even longer battery life, state-of-the-art Bluetooth, and many other highlights. If you're looking to get a radio, make it a BOOMSTER.
Key advantages at a glance
- A complete overhaul of our popular stereo Bluetooth radio for indoors and out
- 2.1 stereo system with Dynamore® technology for a broad sound stage, integrated subwoofer, and two passive bass radiators for powerful HIFI sound
- Understand dialogue easily, enjoy natural sounding instruments, high volume with no distortion, granular control of bass and trebles with 32 instead of 16 volume levels
- DAB+ and FM-RDS radio with 6 preset buttons each on the remote control, swivel & telescoping antenna for great reception, dimmable display
- Bluetooth with AAC and aptX™ HD for streaming music in lossless quality from Spotify, Apple Music, YouTube, etc., Multipoint support (pair a second smartphone)
- IPX5 protected against water splashes, spray, and rain, easy to transport, rugged design, optional bag available
- Party Link Stereo: wirelessly connect two BOOMSTER 4s as a stereo set for even higher volume
- Up to 23 hours of playtime at medium volume, fast charge battery, AC power supply, real buttons for simple control, remote control, AUX input, USB-C power, charging, and service connection, available in three colors
Features
All technologies at a glance
Wide stereo soundstage With Dynamore technology
The BOOMSTER harnesses our Berlin-engineered Dynamore technology to create a larger-than-life virtual stereo soundstage. Perfect for backyard rap battles.
Specifications
BOOMSTER 4
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Description Item DAB+ Yes FM Yes -
Description Item Width 37 cm Height 18 cm Depth 14.8 cm Weight 3.75 kg -
Description Item AUX Yes 3.5mm stereo in 1 Bluetooth Yes Bluetooth 5.0 Yes Bluetooth AAC Yes Bluetooth Multipoint Yes Bluetooth TWS Yes USB C Yes Bluetooth aptX-HD Yes -
Description Item Android Yes iOS Yes Microsoft Yes -
Description Item Display Yes Battery life at medium volume 23 h Battery capacity 7500 mAh Battery type Lithium-ion Power supply voltage 230 V Automatic on/off Yes Storage for settings when disconnected Yes Standby-Function Yes Total power output capacity (RMS) 42 W Amplifier configuration 2.1 Amplifier technology Class D Amplifier channels 3 Maximum charging capacity 60 W Minimum charge capacity 15 W -
Description Item Tweeter (number per enclosure) 2 Tweeter (diameter) 20 mm Tweeter (material) Textile Midrange driver (number per enclosure) 2 Midrange driver (diameter) 65 mm Midrange driver (material) Paper Passive radiator (total count) 2 Woofer (number per enclosure) 1 Woofer (diameter) 110 mm Woofer (material) Paper Frequency range 44 - 20000 Hz Acoustic principle 3-way-system Enclosure type Closed IPX5 water jet resistant Yes -
Description Item Dynamore® Yes -
Description Item Remote control Infrared
Rating: 8.5/10
mac4ever.com
29.04.2026
"Powerful and versatile, the Boomster 4 stands out with its three-way sound system and integrated radio tuner, a rare and highly valuable feature for enjoying music with complete independence. Despite its weight and the lack of Wi-Fi, this robust speaker establishes itself as an essential high-end alternative to the giants of the industry."
"The speaker delivers impressive performance for its size, with a wide stereo soundstage, clear speech intelligibility, and noticeably powerful bass.”
notebookcheck.nl
09.04.2026
“The bass is rich, but it doesn’t overwhelm the rest of the frequency range. Especially with pop, electronic, and mainstream music, this delivers a pleasantly full sound that gives the speaker its character.”
The BOOMSTER has never been better...
www.areadvd.de
21.10.2025
The BOOMSTER has never been better: In its fourth generation, we're treated to a superb-sounding, impeccably equipped Bluetooth radio
[...] In our sound evaluation, the BOOMSTER 4 impressed with a dynamic, powerful and nuanced overall sound. This portable stereo Bluetooth radio handled a wide variety of music genres with ease.
“…now even more precise and spacious.”
www.modernhifi.de
21.10.2025
“Teufel takes its classic to a new level with the Boomster 4. Longer battery life, USB-C, aptX HD and a refreshed design make this a versatile speaker for home and on the go. The sound remains powerful, typically Teufel – but now even more precise and spacious.”
Read more at:
https://modernhifi.de/teufel-boomster-4-test/
Excellent battery life: Great-sounding Bluetooth speaker with DAB+
Satvision
01/2025
[...] Overall, the BOOMSTER 4 achieved a test score of 93.2 percent, confidently earning the top rating: "very good".
Read more at:
https://satvision.de/heftarchiv/heft-01-2026-nr-345/
Portable sound without sacrificing power or balance
AS
26.04.2026
This speaker is designed for those looking for balanced sound, reliable battery life and a solid build, without focusing solely on a compact size. A speaker that is easy to move around, sounds powerful and performs better the longer it is used.
A very positive review for the Boomster 4, which proves to be high quality and very versatile.
psthc.fr
06.03.2026
“The Boomster 4 impresses across all genres and content types thanks to its detailed and excellent sound image. In addition, modern features such as multipoint mode, aptX HD codec, and the practical DAB+ radio function are used, resulting in a perfectly coherent package that is even suitable for outdoor use.”
Read more at:
https://www.psthc.fr/news/123698-2-123698.htm
A medium-sized speaker that you can "park" on a bookshelf, but which is made to take on the go
los40.com
09.02.2026
Teufel's BOOMSTER 4 is perfect for those who are looking for sound from a unique speaker that looks perfectly at home around your house, but is super easy to take out on the go.
Accessories
Required accessories
Please check whether required cables are included.
Recommended accessories
-
BOOMSTER Bag
BOOMSTER Bag: rugged transport bag with carrying strap for the BOOMSTER 4 and BOOMSTER (2020 to late 2025) and special edition BOOMSTERS
49,99 € -
USB-C Power Adapter 60 W
Universal 60 watt fast charger with two charging ports (USB-C 60 watts/USB 7.5 watts) for headphones & portables as well as laptops and additional devices with up to 60 watts of power and USB-C connectivity
29,99 €
Included components
BOOMSTER 4
- 1 × remote control for BOOMSTER 4 – Black
- 1 × USB-C Cable
Downloads & support
Shipping information
Shipping informationInformation about the guarantee
Legal guaranteeAudio glossary
Audio lexicon: Technical terms quickly explainedContact details
Store Finder
Experience our products in person and talk to our team directly for the best expert advice. Overview
20% financing information
Minimum age: 18. You must
live in either Austria, Belgium, Spain, France, Ireland, Italy, Luxembourg, the
Netherlands, or Portugal. Depending on country, installment payments can be made
using a credit card, a debit card, or SEPA direct debit.
Pending credit check performed by Alma. Duration of financing comprises either
2 or 3 monthly installment payments as chosen by the consumer. Customers paying
Alma installments pay no fees, effective annual interest of 0.00% applicable to
loan agreements concluded between 16/07/2026 and 22/07/2026. 0% financing is restricted
to selected products and order values ranging between 99 EUR and 5,000 EUR,
only for transactions in euros. Individual monthly installments for your order
depend on value of goods and will be displayed to you on the relevant product pages as well as the Alma checkout.
Creditor: Alma SAS, 176 Avenue Charles de Gaulle, 92200 Neuilly-sur-Seine, France. Security of payments guaranteed by Alma and its service providers. All payments protected by 3D Secure. Depending upon country, eligible customers must have a valid and accepted credit or debit card as a payment source, or share their SEPA direct debit information with Alma.
More information about Alma Installments can be found here: https://teufelaudio.com/payment-options