The Logitech UE 6000 has clear audio with heavy bass (not many people will like it, but I love heavy bass). Priced at SGD$319, it is still reasonable for an active noise cancellation headphones compared to the Bose Bose QuietComfort 15 (SGD$599). To be honest, I do not know other alternatives out there that are within this price range for active noise cancellation headphones. I am pretty sure Sennheiser or Shure will have one. If you come across any alternatives, be sure to leave it in the comments.