These headphones sound great and fit in the ear comfortably and securely. However, they are fatally flawed by being the most unreliable connectors I’ve ever had in a Bluetooth headphone. Regularly refuses to connect to paired devices and impossible to connect to a Windows PC. Should be far better for the price.

For the weight, portability and the lack of messy wired entanglement - this is superb. The sound quality, is as expected from Bose, great. I certainly can enjoy a lot more music, taking me away from the hustle and bustle of people around me, when I am doing recreational activities or at work with this in-ear speaker.

Very comfortable to wear, after 1-2 minutes I don't really feel them anymore, especially after some good acoustics!

I have heard of them very easily broken if dropped - therefore extremely cautious about it. That somewhat added a degree of worry when I wear them - if only they could be built with a more shock-proof armour that would be awesome. Of course this never happened to me.

I couldn't live without these - loved them for 6 months, BUT after they fell out a few times they are broken and I'm really disappointed that such an expensive product, designed for sport, can be so fragile. I am active whilst wearing them and tried the various sized plugs so I had the correct size but they did fall out a couple of times and then they died. I've decided to take a safer option now.

I saw lots of comment before I purchased this, lots of people saying it looks too big, but it actually looks perfect when my boyfriend wearing them! For a music lover, the sound effect is perfect. And for a gym lover, you definitely will love this product. They will stay stable in your ear and sweat proof too.

This is a great pair of wireless earphones. They are so compact and so comfortable and of high quality sound. Great to use anywhere and they fit so well in a pocket. It's great not to have any wires hanging round your neck. They don't snag on anything.Top quality sound from Bose

I got these gifted by my sister in law, loved it, they look pretty cool, fit well and sounds good too. They are surely one of the pricier ones in the market but I guess you are paying for the brand. I have used them during workout and havent lost them yet, yay.

Good for working out
Sound quality is alright and fits amazingly at least in my case.
-1 star for the price and another -1 when you watching a video it lags and sometimes it's not easy to connect.
For $300 you can look for better options.
Overall I will recommend it to the gym goers and runners.

Fit your ear nicely and come with other size earpieces to get the right fit for you. Sound is incredible for earbuds and they hold up well even on a big run. Case to hold them in is very nice and love how you can set up to find them if you lose one! Only bugbear is that you cant turn them off until you place them back in the case, would have given them 5 if that was the case!

Asked for best wireless sound earphones for running. Cost $299.00 Didn't realise they were so large. Fell out even before I moved, then I ran on the spot and they fell out almost immediately. They could be ok for people with large ears but probably not suited for females, especially for sport purpose. Look large and cumbersome out of earlobes. JB HiFi were fantastic and refunded me straight away even though I had tried them on. I think I'll stick with wireless and over ear attachment for running in the meantime.