Why are wireless headphones so rare?


Almost everyone I see using a portable music device is using headphones tethered to the device by a wire connection. I use them too, but the wire is a pain in the butt to say the least and constantly gets tangled. This must happen to others as well and there are wireless headphones out there that aren't outrageously expensive and get at least decent reviews soundwise (I just checked this out). I'm probably going this route but just wondering why the wireless 'phones seem so rare out there? Why do people keep putting up with the hassle of wires? Is it just a lack of knowledge about wireless headphones? Anybody have experience using these products? Thanks for thoughts.
soix
"Why do people keep putting up with the hassle of wires? Is it just a lack of knowledge about wireless headphones?"

That may be one reason. For example, I know little about them these days. Are there wireless headphones that test out as well as wired for sound quality? Should be possible, but I have not noticed anything so far (though I have not investigated thoroughly) so dunno if any like that?
The headphones have to have some sort of power. It would be batteries...
So either the phones would be really heavy to last, or, you would be changing batteries every few days.

If you would be using the phones with a portable device, then you would have to drag along the sending unit anyway if carrying them. So for most apps, i would think wireless would actually be the bigger PITA.

The few wireless are really designed for in home use. And the phones get charged sitting on the base unit.
For portable, that would not be much of an option, unless the sending unit was separate from the charging unit. and sending a signal wireless may take too much energy from an Ipod to work well.
(since 90%+ of all portables are an Ipod or phone.. The wireless might work with a phone, but I bet no way could an ipod support the power drain.. )

Just use your bluetooth headset for music?
Elizabeth +1.
"The headphones have to have some sort of power. It would be batteries...
So either the phones would be really heavy to last, or, you would be changing batteries every few days."

You could keep the batteries in a separate pack and just run a power cord to the headphones. And use rechargeable batteries.
The point was no wire.. Why bother with a battery pack and a wire, when all you needed was the wire to the player?
Solar powered wireless headphones - next invention.
Well if thats the case, than the other wire to the player can balance things out and give you some extended range. Kind of like if you biwire speakers. It allows you to use 2x the amount of cables without having the negative effects of the extra length.
Back in my day, while walking through waist deep snow 2 miles to school with a hot potato in my hands, we tied a transistor radio to our neck and it was good enough.
When I was a kid we had to plod through neck high snow with ten foot drifts in temps 20 below zero, gale winds, and thitry miles to the unheated one room school through thick underbrush.. fighting off the packs of hungry wolves with only sticks.. singing to ourselves to keep warm. No hot potatos.. Jeez what luxury you had Nonoise..a hot potato..wow.
(8^Q...
You poor saps. I remember riding my bike to school with an ashtray strapped to the handle bars listening to my crystal radio!

Oh, wearing sunglasses. In the WINTER!
I had to walk uphill to school.... and uphill back from school to home!!
@Kijanki, you may get sweaty using one of these. :)
Bose just came out with a wireless Bluetooth headphone, the AE2w that has some nice features. Very lightweight and comfortable they will pair with any Bluetooth enabled device.
I had to walk through two feet of snow to get to school, and had to cut through a unplowed cemetery to boot. To make it worse, I had to do this wearing Levi's, carrying my books and smoking a Marlboro with one hand and a ghetto blaster with twelve D batteries in the other. Then I had to go to ski club after school and do it all over again. Luckily the Walkman had just been invented and I could crank cassettes on the chairlift through my $200 Walkman which cost more than my skis and boots combined. Doesn't anyone roller skate with a ghetto blaster on their shoulder anymore? I don't have a problem with wires. I notice them but they don't bother me because they've always been there.