Audeo Perfect Bass Earphones 012 (Black) Offers active music lovers a natural, well-defined soundstage  with an extra kick of bass. Swiss-precision technology from Phonak, the world's leading hearing systems manufacturer. Comfortable fit and lightweight design: perfect for travelling, working out or just relaxing Special filters punch up the bass while allowing you to enjoy music at lower and safe volumes Silicone earpieces block up to 23 dB of ambient noise.