How do these work? Does each one require a battery? If so, does it come with? what size?
461441
These were so much fun for the kids at a weiner roast. There is a battery inside each finger beam and there is a small switch to turn the light on. I bought 3 sets and only one light did not work. Hope this helps!
461442
They work independently of each other,they initially have a battery in each one. Its like a watch battery, not hard to replace. My kids love them
461443
There's a switch on each light. The light straps on to your finger with a rubberband (color matches the light) The batteries are included... Don't know if you can replace them or not. I bought 7 sets and 2 lights didn't work, it's still worth the price to me. They're a little over an inch long and abt half an inch high. My kids and I live them...especially during power outages.
461444
Each one must have a little build in battery - we have these and have used them over and over again and the seem to last for a long time. My kids love them. I don't think you could replace the battery though, after the light goes out....but they do seem to have a nice long shelf life! :)
75089
I did not use batteries, but he instruction book says that four size "C" alkaline batteries are required. Hope this helps.
1464297
Comes with everything u see in the picture. Although it comes with a small battery, I would buy a bigger one
1259394
It does not come with batteries. It takes standard AA batteries four of them. It comes with a USB cable so that you can connect it to your computer to view and download your photos.
1897483
You can use batteries but it does come with a cord. I would suggest the optional extension cord as well.
863225
This item does not include batteries...you have to purchase them separately.
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.
1995088
Yes, there are 2 devices. I don't remember if they came with batteries, but I believe they did.
818022
if i remember correctly no batteries, but read the specifications/discription ofthe item. i returned mine, it wasn't what i expected.
1372392
These work with 3 AAA batteries , but I would recommend you buy the uv from a different company. This company is a rip off.
1608718
Just batteries, but I bought mine a while ago. They may have changed it. It is really great on battery life though! We still use it and have never had any problems.
391895
3 AAA It comes with them. I use one on my stairs in my home. I have another near the entrance to my goat pen and another out near where I have my garbage cans. The light is on for less than 30 seconds. It alerts me when there are coyotes near my goats and on my stairs, I never turn on my stair lights (I also have one on the outside leading down to my cellar). I have replaced one set of batteries in about a year (on my stairs) and have not replaced the others. I hope that helps.
715211
Yes it come with batterys ,but did look to what kind sorry. They work good,Never had to change any I own 7 of them for about 7 or 8 months.
68007
It does not require batteries, but does have to be attached to a USB port. This company offers a different version which is what you are looking for.
775090
No, you do not have to buy batteries. They are all ready to go. There is a little pull tab that like activates them.
399338
It doesn't need batteries. Mine too inexplicably stopped working after a short while. I had to return it.
549561
It does require batteries. I think they were AA. That's all I have in the houses and don't remember having to buy them.