Although the changes compared to the Soundboks 3 are minor, the latest model is still the best Soundboks yet. It delivers an even more powerful and precise sound, though it lacks a little in the mid-range. To get the most out of its features, music fans will need to use the smartphone app. This is because the buttons on the device do not cover all functions.

The Soundboks 4 delivers a powerful and precise sound, but lacks a little in the mid-range. To fully enjoy the operation, music fans will have to reach for their mobile phones. Although the small number of buttons on the device makes it easy to use, buttons for playback control would have been desirable. The features are excellent, especially for musicians.

Natural sounding bass, clearly audible details and balanced, lively sound - this is what the perfect speaker should sound like. However, good sound quality is not everything: Stiftung Warentest also expects a test-winning speaker to be easy to use, have a long-lasting battery and consume little power...