A powerful bass, clearly audible details and a balanced, lively sound - this is what the perfect Bluetooth speaker should sound like. However, good sound quality is not everything: Stiftung Warentest expects a test-winning speaker to be easy to use, have a long-lasting battery and offer practical additional functions...

With an attractive fabric casing, certified water protection and an enormously long battery life of over 30 hours in the test, the Philips TAS7505 is excellently suited for mobile use. The very large Bluetooth range is also pleasing and the pairing of another speaker for stereo sound is useful...