Would the noise canceling run down the battery on my iPhone or is there a place for AA batteries?
2031497
These do not have active noise cancelling (which would need power). Instead they have passive sound insulation. They are quite effective. I use mine for mowing the lawn and can listen to music or audio books without turning up the volume much at all.
264702
The headphones work without noise canceling, the noise canceling is only an option which uses the battery when it is turned on. When the battery dies (after about 72 hours of use) the headphones will still work and play music.
1943748
One is battery powered and has an internal active noise canceling amp the other is not active noise canceling and has no batteries.
247099
Active noise cancelling happens whenever the switch is in the on position. So even if you're using the cable to connect to the phone via the 1/8" jack you can have active noise cancelling on by flipping the switch.
573927
I guess it refers to the battery...you need to connect to your device with a cord. It cancels noise well though, and the sound quality is ok.
1888986
Yes, they take one AAA battery. They should be switched "off" when not in use to preserve the battery by sliding the yellow switch on the side. They are still functional when the battery is dead; the noise reduction feature will not work, though. Hope this helps :)
658605
You will need to take off the ear pad. It just snaps off and the one battery is in each side.
2223491
Absolutely. Just Ensure you have Batteries Installed (and Fully Charged) as well as having the Noise Cancelling Button On. Unfortunately, the Button is Poorly Located on the Headset, and I inadvertantly turn it off while adjusting the Headset.
2091330
Have you checked the battery?If yes, probably your noise cancellation circuit is broken
1269609
Battery is required to provide power for the noise reduction circuitry within the headphones! you can tell the difference by turning the headphones on and off! They work well!
1465377
Because they sit on your ears and do not cover them like they advertise you can probably expect from 10 to 12db reduction (size of your ears thus large ears less coverage). The annoying background hum could count as an extra 1 or 2 extra db reduction:-). They work as headphones and you get what you pay for. As the battery goes dead things go down hill fast and so for best results on db reduction these headphones suck the life out of batteries real fast.
1880881
Yes they will work wired without power. However when using the Noise Cancelling feature they will use power from their battery. So if you were trying to use the Noise Cancelling feature with a dead battery you would be out of luck. Otherwise you can simply plug them into any source and listen away.
2144957
yes, but as long as no one else is talking. you will hear everything.i have two of them one in my pocket for back up. instead of thing to replace the battery right there.
60911
Hidefinitely will work. It use the headphone jack. Check another brand, mine did not last long : (
1776776
Technically No.......unless your charger cord is very long. I usually have my spare traditional headsets, if I'm listening for longer than a couple of hours because you need to be prepared once you get the second "battery is low" message. But, they charge back up pretty quick. Hope this helps.
1747874
Audio technica has a nice little lave that reuses a battery but works well and isn't too expensive. Palm azon has it. It has a stereo plug too.
1311195
A) this does not have active noise cancelling. b) yes, if you plug the cord in it does not use the battery powering the bluetooth connection. so if your battery dies for wireless usage, you can always switch to traditional analog input.