The design is nice. The IEMs sit well in the ears, and the sound is pretty neutral and natural, with a decent soundstage.
However, something in the circuitry causes an intermittent "beeping" sound in the background, spoiling what could have been an excellent experience.
Sery-VolkI purchased these from AliExpress for about $20 more than the drop price. Mine did not do this, and I really liked the fit and finish. Sound was good, not outstanding. It was the favorite of my 3 sub 100$ bluetooth iems until they broke less than a month in. Shanling China would not honor the warranty, referred me to the AliExpress store, also useless. I imagine drop will be handling warranties and returns, which makes this a superior option than the route I took.