Excerpt: I use the headphones primarily for trail runs. I've been using them without any problems almost daily for about a week and so far they appear to be quite sturdy/durable. The exchangeable earpieces in multiple sizes allowed me to find the right fit for my ear so that they don't fall out even after hours of running (& lots of sweating).
Summary: I had Bose sie2i with me for almost an year, which I purchaised form here. The first thing I would say Anyone looking to purchase this headphone have to prioritise their needs because this i s bit unreasonably priced headphone. The most striking feature is its comfort, it fits comfortably in your ear and won't fall off that easily and you won't even feel it's there.
Great alternative to those noise-cancelling ear hurters BUT...
13 November 2013
Summary: the jack (where it inserts into my phone) is straight which i never like in headphones. Its been a month and already the wire is getting bent harshly from being in my pocket. I hate to see this happen to my £100+ headphones. Ear pieces are great, id say about 8/10 for fit, as they are not 100% perfect, but comfort is definitely the best I've ever had in headphones, and my old ones were £300 monster beat coppers.
Summary: These replaced an older pair of the Bose in ear headphones. I find lots of in ear headphones very uncomfortable because they are too big, these arrive with 3x sets of silicon ear tips (S/M/L) that mean they will fit almost anyone. These are great for running the revised design means the tips don't fall off and the headphones stay in your ear.
When the sound doesn't fly away! Thanks a lot Bose
15 September 2013
Excerpt: The discovery During my little holidays in Hamburg, I went to the front window of the Bose Store and I noticed then these headphones with those particular end pieces…. because it is based on an opposite support, which is by the inner ear instead of the outer ear… I was at first planning to save money for the sport headphones from Dr Dre… but the Salesmen from Hamburg have known how to make me change my mind. How?
Summary: For those of you who doubt whether or not these stay in your ears while doing rather bouncy activities like running or marathons, I can confirm that they comfortably fit in very well and don't bounce around. I can also clarify, while accidentally tripping and falling while sprinting over a pavement during a dark midnight run, that even when you smash your entire body face-down into a pavement, they still don't fall out.