For a wireless noise cancelling headphone with an affordable cost, the Sennheiser HD 4.50 is a great steal. Of course, don’t expect the sound quality to be at par with other Hi-Fi Sennheiser models, but this model can actually deliver high calibre audio that’s either at par or even better than other wireless noise cancelling headphones in the $200 price range. The bass is also powerful and offers good definition while the treble has a charming sparkle that works harmoniously with the midrange sounds that sounds natural and warm. If anything, the openness and clarity are the weak points of the Sennheiser HD 4.50, where audiophiles can point out something missing in the upper treble. Nevertheless, the overall sound signature of the Sennheiser HD 4.50 works well with a wide variety of music genres.
The Sennheiser HD 4.50 performs well as a headset. It has a sidetone feature that allows users to hear their own voice while they are on a call. Most headphones sold at this price do not offer this feature, so yes, this is one of the perks that the Sennheiser HD 4.50 can offer.