Once i got used to inserting these with more force and getting them to stay, i am impressed and could recommend them. They work beautifully.

The jbl earbuds sit in the ear canal to form a seal, not just in the outer folds of the ear like normal earbud. They are very light in your ear and the ear tip and ear fin options allow you to get a perfect fit.

Accurate bass without sounding muddy, and very crisp and clear highs. These reproduce sound faithfully across a *wide* range of frequencies and volume.

Jbl builds some very nice speakers, and that know-how translated well into the aero's small package. The audio quality is excellent, and it shouldn't be a surprise. Jbl always crushes it in that aspect.

Earbuds are very large and heavy and keep falling our of my ears as i move not matter what size rubber fitting i use. The sound quality for music is terrible. Coworkers report crackling from my audio. They were supposed to have an excellent microphone...  Read More

The app is a joke. Pairing is also unreliable at this point. It's more difficult to tell from the case when the battery is low. Bluetooth connectivity is also poor.

False advertising is completely unethical. Insanely bad fit. These are just a few of the cons.

Won't be purchasing electronic things from amazon anymore. Amazon lists the product as frequently returned, for good reason. Returning the jbl.