There are wired headsets that are easily obtainable on-line or in a local store for the V3c. But the best is to get an adaptor/adapter to use a standard 2.5mm/3.5mm phone headset.
These ear buds/wired hands-free head sets work with the V3 RAZR and SLVR. Basically these phones have a single mini-USB port that functions as the USB connection to a computer or the charging port or a wired headset.
This headset can be obtained from your local Cingular store. It is known as the Motorola SYN0896, barcode 63650 earbud. These headsets function but they are not comfortable and they are not inconspicuous. The earbud is designed to be set in the ear at an angle. That works fine but there are sharp edges on the plastic housing. A little bit of filing and fine sand paper fixes this. Here is the Cingular one.
Here is the one from online. It was dead on arrival. I was not able to find the problem with it, the speaker works and the microphone works individually. Even more perplexing I re-soldered the wires and checked the continuity to the USB pins. I have seen pictures of other SYN0896 earbuds like the one below and they were totally different. I also found a forum where other people had DOA earbuds. The only conclusion I can come to is this design won't work with the V3c. And I'm not sure this one was really a motorola even though it was advertised as such as there was no logo on it. But, the one from Cingular has the motorola logo and it does work.
There is also a stereo headset available online, the Motorola HS120. But this headset did not work at first either. The problem with this one was a poor solder joint that was shorting out the speaker. This was easily remedied. The fix required disassembly of the switch box and a soldering iron. The first pic below shows the glob of solder shorting out the device. The fix is simple, just use the soldering iron to remove the glob. But it uses the same uncomfortable and obtrusive earbuds. It is to note they call this stereo but look closely, it is not stereo. It is mono just with 2 earbuds. Both earbuds use the same two wires. Although this headset was advertised as the HS120, I'm not certain it is as there is no Motorola logo on it. Perhaps this is just a knockoff too. Incidentally, I bought both of these headsets from www.accessorygeeks.com.
Since two of those types of earbuds are worse than one :) and since it wasn't really stereo anyways, and since it did function after repair, I decided to use the HS120 to modify to use a 3.5mm phone headset. The modification is simple. All that is required is to solder a standard in-line female 3.5mm socket. Radio shack sells a 1/8" male to female 6ft stereo audio cable that can be used for this. Just cut the female end off and strip the wires back. The wiring schematic/diagram is simple, there are only three wires. The pin contact goes to the MIC+, the ring goes to speaker +, and the base goes to the ground on the circuit board.
Radio shack sells a 3.5mm (1/8th) to 2.5mm (3/32") adapter/adaptor that you can use for 2.5mm phone headsets. This way, you can use 3.5mm or 2.5mm headsets. I used both a plantronics and a panasonic headset with this and it works great. I did have to file the wire pass through groove in the plastic housing halves where the phono plug cable passes through as it's diameter was a lot larger then the cable used for the dual earbuds. Then simply put four dabs of glue on the halves and reassemble the box, easy and it works great! The start/end call button works as well as the mic mute and speaker volume control on the headset (the panasonic phone headset I use has an inline box). Sound quality is excellent. There is a modified adapter/adaptor just like this that allows you to connect a standard 2.5mm/3.5mm phone headset to the mini-usb port on the V3c. It is available online as well, sometimes found on ebay.
