Good for Music, terrible for phone calls. About half way through every phone call I give up and switch back to holding a phone up to my ear as I have no idea what people are saying. If my phone is in my back pocket while biking sound drops, has to be in my shirt pocket. Bluetooth range seems lousy. When running I have to push them back in my ears once every two minutes and get lots of noise from movement. Fine if you sit still. Love the magnets and they look neat. Connectivity is good/easy, buttons work well. Can't seem to figure out how to activate Siri.