Teufel Rockster Go 2

The Rockster Go 2 is a pleasure to use. The battery life is nice and long at around 21.5 hours, and the speaker also scores highly in terms of sound, although it lacks bass. Thanks to the built-in USB sound card, music can also be played via cable. The Go 2 is weatherproof, robust and honest - but if you're looking for extras such as changes to the sound, you won't find them here.

In the speaker test, the best Bluetooth and WiFi devices score highly with their rich sound and ease of use. However, only a few offer this complete package. Natural sounding bass, clearly audible details and balanced, lively sound - this is what the perfect speaker should sound like...