They are a tiny notch above in-ear headphones in terms of sound isolation. Bluetooth connects fast to iphone 7. Would recommend this product to anyone that is looking for an easy to install rack. Please advise? Also they?re too small length wise, and I?m between an 8 and 8 1/2. It has a baked in thermo/humidity sensors which adjust the fan speeds at user set values. For such an inexpensive scuff these are great. It doesnt smell as good. The use is very similar to other Bluetooth buds I have used. I would give them 10 stars if I could!