Etymotic Research ER3XR-LE Extended Response High Performance In-Ear Earphones (Limited Edition Compatible iPhone Adapter and New Dual Flange Tip Assortment),Black

the bass is a little booming, but it is there!

This doesn’t work with apple products as advertised. It doesn’t have a lightning connector. The lightning converter also doesn’t work well with this product.

At least a flatter frequency response curve. Thankfully not harman tuned. Unfortunately, sound has that squidgy fake character of balanced armature drivers.Extemely uncomfortable with the really deep insertion makes these usable only in limited situations i. e. Noisy environments.Small size is a positive attribute