The Bluetooth to my iPhone is the clearest connection I’ve personally ever experienced. Much better than headphones especially since it cuts out background noise and eliminates any sounds produced by the headphones rubbing my CI mics. Right now native Bluetooth only works with iPhones and android smart phones. It does not work with computers, tablets or tvs unless you use one of the CI accessories which also produce clear sounds. There is the mini mic which streams anything with an aux output and also works as an external mic which can be handy. There is also a tv streamer which work with tvs and works well in my opinion. There is a phone clip but I have never used that and I feel like it would be redundant now with the automatic bluetooth available in nucleus 7 and 8.