Originally Posted by deesugar

I am currently using the T505 and maybe I'm not understanding your question but the T505 will play music and switch audio to a call (incoming or outgoing) returning to music as soon as the call is ended. Now if you're asking if you can use two different blutooth devices at the same time. One for music and one for calls I would doubt it since there are no settings in Bluetooth to do that. You would have to tell the Pre through some type of Bluetooth setting that you want to assign audio to one device and calls to another. I'm not even sure why you'd want to do that. Unless you like music blasting in the background while you're trying to talk to someone.

T505 comes with a car charger and will operate while charging, which is very important to me since it's a pain to constantly move devices in and out of a car just to charge it. When you first receive the T505 they do recommend to charge it fully before use, just an FYI.