Good quality dynamics sound. It has an ergonomics miniature design that fit my ears comfortably. I like its buttonless touch control feature. Although the ANC quality is not as good as my noise-cancelling large headphone. But it is good enough to reduce the surrounding noise during outdoor exercise or jogging. Ambient mode is the best feature that allows me to listen to the surrounding sound without removing the earbuds. Long battery life. With a fully charged case, I can use the earbuds up to 1 week without a recharge. It is a great product with a very affordable price.