Any suggestions of which kind of manual to get, bmb13? I really have no problem with switching from the KR808s. I have an Echo and use that with the Echo cartos, but I don't mind trying something different and can always get an adapter, right? I started looking though, and there's just so many kinds...plain pass-throughs, ones where the battery can be removed, ones with different volts (? still not sure what that does), and so on. It's all confusing and I haven't ordered anything because I'm a lil bit nervous about making a mistake!