I've "enjoyed" most of these including the occasional loud blast of white noise when trying to connect, and my favourite; they disconnect immediately when there

I've "enjoyed" most of these including the occasional loud blast of white noise when trying to connect, and my favourite; they disconnect immediately when there's no output for a few seconds and then take a few seconds to re-connect. Mac OSX also doesn't seem to enjoy that, immediately reconnecting takes a bit and often fails. They're nice but they suffer from "trying to be smart" but end up being annoying.