Problems with Sennheiser MM 450-X at TestFreaks.com

PC Magazine

2 weeks ago

Conclusion: The versatile-but-not-flawless Sennheiser MM 450-X is a Bluetooth headphone set that also has active noise cancellation and the ability to be used as a wired pair.
Pros: Excellent audio performance with crisp, articulate highs. Supports Bluetooth and active noise cancellation. Lightweight design. Can be used as a wired pair.
Cons: Noise cancellation emits audible hiss, causes some distortion on deep bass tracks at high volumes when engaged. Quite expensive. Slightly uncomfortable over long liste...
Read Full Review

itproportal.com

3 weeks ago

Conclusion: Generally speaking, the MM 450-X is a fantastic Bluetooth headphone pair and a decent, but not amazing, noise-cancelling pair.
Pros: Excellent audio performance, Crisp articulate highs, Lightweight design
Cons: Noise cancellation emits audible hiss, Quite expensive, Slight comfort issues
Read Full Review

Stuff.tv

16 September 2012

Conclusion: With such great sound, if they didn't need the occasional recharge we'd never take them off.
Read Full Review

Sennheiser MM 450-X