What are the batteries for, and, what kind are they?
257430
No batteries, these are just regular headphones that you can plug into any MP3 player, walkman, diskman, ect. ;)
128281
Sorry to be so late. They are the size of a standard AA battery, not the short ones sometimes used in solar lights.
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.
1726813
Batteries are built in and rechargable.If they go bad you can replace them.
1528798
Wow...I never looked. I would guess they are AAA, but could be one of those quarter size round batteries. I rarely use the remote though. I just set it and let it go.
1713201
uses AA batteries. Also it has a feature that will ask you what type of batteries are installed.
1082287
I am not sure but they either take AA (most likely) or AAA. Yes, they can be used with battery only, why else would they have the battery option? As for how long, they lasted quite a while for us.
187125
Sorry, I've no idea. They just didn't seem to last as long as batteries I buy locally.
1651016
I can't remember for certain but am pretty sure they came with batteries. Sorry about not being too helpful.
811306
They are 'D' batteries . They last long enough. Still like radio. Its a very simple radio.
846594
I use whatever batteries I have lying around. The overheating ones were generics.
318762
I believe they are Li-ion. They are small and light and seem to have good duration in use.
1917928
they take a aaa rechargeable battery. There are 4 screws under the top section along the side. Remove all the screws and the top will come off and you can replace the batteries.
2153889
We don't know about batteries - we use these storage boxes, and they work great for that. It appears someone else was able to answer your question. Good.
93914
They are built in to the rim and have batteries that can be replaced. They are the flat disc batteries.
70145
Those flat lithium batteries, like the kind that go into a garage door opener. But no, I have several of these and have yet to successfully replace the battery in one. I'm usually pretty good at that stuff.
1308444
Built in battery. (I don't know exactly what type of battery it is. I just guess Li-ion rechargeable.)