I can hear conversations very well through my Jensen Radio. People cannot hear me well through the blue tooth. They say I sound far away or garbled. It could sure use a better transmitter.

This unit is supposed to synchronize your phone's address book and call lists with Jensen head units - but it doesn't work with many phones. With Jensen's VM9423 head unit and an iPhone 3g, contact names show up as random hexadecimal characters instead of real names. It's not an issue with the phone as it works great wit Alpine head units. Technical support is well aware of the issue but has no plans to fix it (apparently I wasn't the first to complain about this). If seeing your address book is important to you (and it should be) - DON'T BUY THIS UNIT until you've tested it with your own phone.