Both are a good choice. I have both models. In noisy environments like Migros or Coop restaurants, the noise cancelling function is very very pleasant. The 3rd gen. Is more comfortable to wear for me personally. I use them mostly in the office when I want to have them in for several hours to talk on the phone and listen to music in between. If the rubber things don't bother you, I would recommend the pros. The transparent mode is also very good, depending on the situation. I always switch it on when I'm on my bike. I hope this helps you. LG Christof