Do they need batteries to work?
222138
They will work like normal headphones without batteries. The noise canceling function does require two batteries.
708726
Yes. Batteries included protected by small plastic strip you remove to make the "contact" so they work.
1865911
If I recall correctly they take AA batteries. The battery life would depend on the batteries, I guess. We don't use them for very long at a time so I am sorry I cannot be of much help.
1038837
Yes. The only thing I've found tricky with these is getting the battery compartment open. Once I figured it out, it wasn't too bad. Don't forget to turn them off when you aren't using them -- the battery will run out! (I use them at work and accidentally left them on over the weekend. Luckily, I had a spare battery in my desk!)
212694
I doesn't come with any batteries. You could use rechargeable batteries, although I don't know how well they would perform.
681736
Yes, through the manufacturer but they haven't carried them for quite awhile. We are still using batteries on ours for just that reason.
2205406
They sure do! Plug and play. There's a paper tab you pull out from the where the on/off switch is and then when that's done, they'll be ready to use.
1695109
They don't come with an extra pair of batteries but they do come with batteries already put in them,so yes.
516963
I don't recall seeing anything about a battery, I think they must be plugged in to use.
2055085
Hello,I see you had a question, to answer your concern: these speakers donot require batteries, nor do you have to plug into a electrical outlet. A USB plugin and sound input is all that's required.
820369
literally, yes. But if you have rechargeable batteries, why not give them a try. If they're 1.5V, they ought to work.
1121203
they have their own electrical cords so plug 'em in ...........no batteries
860172
They require 120VAC power, i.e., need to be plugged in. They are portable, but need a power source.
1056960
Yes, the batteries are with them and do they work great. Buy a set and enjoy them.
802654
They require batteries, I gave them as a gift to my son in law, but I believe they run on 3V batteries.
1761270
They do have batteries in them. I love them but your getting what you pay for. It's cheap they last about a month with regular use. Then I tossed it away and put on a new one. Ordering extra is cheaper than replacing batteries.
1969556
Yes. But if I recall correctly, they either come separately packaged or you have to remove a plastic film, which separates the batteries from its contacts, in order for it to work.