Headset for Motorola V3XX Razor phone

First, 'radiation' from a cell-phone is high frequency, on the order of

900MHz at 1W peak transmitting power trying to 'wake' up a tower. Second, 'radiation' from bluetooth is higher frequency, on the order of 2.45GHz [exactly like your microwave oven] at what? 100mW?

Next, your body is a giant saltwater bag and is conductive to these frequencies, it's like having a metal shield around your body. The ability for high frequencies to penetrate your body is extremely small. The telephone frequency is less than 1% within half inch, depending on just how conductive you are, could be as low as 0.1% For Bluetooth it's down to less than 1% at 1/3 inch.

So, starting out with lower power, means you get to lower power sooner, thus Bluetooth would be preferential for lowering your exposure.

And worse, there is some evidence that hardwire headsets intended to reduce exposure by moving the phone away from the head can actually increase exposure by creating an 'extra' gnd [transmission line] a standing wave along the wires if you will that actually inserts the power right into your ear. Doesn't seem prudent to me.

All in all, if you're concerned with exposure to RF getting into your body, I'd lean toward the Bluetooth wireless headset and keep the phone on the dahsboard, or on top the desk.

On Wednesday, December 18, 2013 8:34:53 PM UTC-5, snipped-for-privacy@gmail.com wr ote:

s the small sort of triangular one that the charger plugs into. The ATT peo ple want to sell me a Bluetooth not getting the idea the the reason I want a headset in the first place is to get the damn RF away from my head. They really don't know or care much about helping a guy with an 8 year old phone , I get that. So I'm hoping that the group can help. Does this charger port also serve as an audio port as well? Is there a headset available that wou ld work with my phone? I don't relish the thought of continually microwavin g my brain every time I have to use this damn thing. Thanks, Lenny

I know what the frequencies are for both cellular and Bluetooth. When I sai d "microwave" I was generalizing. I just don't like the idea of RF at any f requency so close to my head. I thought that we might be able to take advan tage of the inverse square law but it seems not. It's rather disturbing wha t you said about the headsets acting as antennas. I guess the only solution is to leave the damn thing at home, in a lead box.

I know that I probably sound like a crackpot but they didn't think there wa s anything wrong with giving pregnant women Thalidomide either, until they found out years later that there was. Opps, sorry about that...Lenny

I had the same problem. The Motorola-proprietary wired headphone was too expensive. So, I ended up with a tiny bluetooth earbud instead.

I never came up with a better solution than that. That RAZR V3 also used proprietary USB cabling such that it would charge from a PC but not from any wall or car USB charger.

It would only charge from a Motorola car charger.

Eventually, I switched to a smart phone, which took a "normal" USB cable and which had a normal headphone jack.