The illustration for this produce is not clear enought to allow you to clearly see which Motorola phones it fits, and the description doesn't say, so be careful. There is apparently a version for the Startac series AND a version for the V-120C (and similar). This review applies to the V-120C.This is an extremely useful product. The receive audio is excellent. I get very good transmit audio reports with the built-in microphone. I get better transmit audio reports with a microphone pluged into the unit and positioned closed to my mouth. Motorola makes an optional microphone for this purpose.However, if you own an earphone(bug)/microphone handsfree unit you can plug it into the microphone jack on the unit and use the microphone. It works quite well and can be positioned nearly anywhere near you. I put mine over the driver's sun visor. I can ignore the whole thing unless I get or make a call, or remove the phone and take with me.If you are undecided as to whether to buy a handfree unit, DO IT. The increase in safety from simply having both hands on the steering wheel pays for the unit (and maybe your car and body).With the V-120C and its voice dial capabilities, all you have to do is press one button to make a (voice dialed) call. If you set the &quot;answer with any button&quot; or &quot;auto answer on second ring&quot; options you have to do nothing more than press one button (or wait for auto answer) to receive a call. Keep the unit pluged into the power socket and simply plug in your phone when you get in the car. Very easy, and you can move it from car to car (including rental cars).It works. It's safe. It's cool. Mostly, it's safe.