I was looking for something that wouldn't fall out (small ears!) with a budget of up to €40. For music while walking, they are just fine; for running, they might need some "stuffing" to not fall out. They do not provide complete isolation from the external environment, so I can hear the passing cars. What I read about enhanced bass I would say is true, but for anyone who doesn't prefer it, the app has many equalizer options. I had no problem connecting to my phone, and now whenever I have Bluetooth on, as soon as I take them out of the case, they connect directly. During a call, I could hear the other person just fine, logically they could hear me too since they didn't comment on anything. Overall, I am completely satisfied with the purchase, 4 stars just because this is my first experience with such a gadget and I didn't have many technical requirements.