The Bluetooth headphone test provides results for 240 headphones with and without earpieces. Which ones sound strong, have good batteries and no harmful substances. New in Stiftung Warentest's headphone comparison: 26 current in-ear and boom headphones. Among them are models from Apple, JBL, Samsung and Sennheiser...

Xiaomi relies on the loose-fitting Ear Bud design without rubber seals for its top headphone model Earphones 2S. This provides good wearing comfort, but active noise suppression would only be possible to a very limited extent and therefore falls flat. The Earphones 2S sound a bit squawky with slim bass and not quite clean treble.