is it battery opperated or do i need to plug it in
1812565
The mattress has a built-in 120 volt pump to inflate the mattress so the normal inflation process involves plugging it into a 120 volt outlet. However, I'm going to be using it this weekend at a site with no electricity. I will be using a Coleman battery powered (4 D batteries) pump to inflate it. It takes 10 minutes to inflate with the Coleman pump. However, the mattress does not get as firm with the Coleman pump as it does with the built-in pump. There is a 5/8" opening in the middle of the control knob on the mattress in which an external pump can be connected. The Coleman pump calls it a "Boston Adapter". So any external pump with a 5/8" outside diameter connector can be used to inflate the mattress. The mattress has a built-in 120 volt pump to inflate the mattress so the normal inflation process involves plugging it into a 120 volt outlet. However, I'm going to be using it this weekend at a site with no electricity. I will be using a Coleman battery powered (4 D batteries) pump to inflate it. It takes 10 minutes to inflate with the Coleman pump. However, the mattress does not get as firm with the Coleman pump as it does with the built-in pump. There is a 5/8" opening in the middle of the control knob on the mattress in which an external pump can be connected. The Coleman pump... » Read More The mattress has a built-in 120 volt pump to inflate the mattress so the normal inflation process involves plugging it into a 120 volt outlet. However, I'm going to be using it this weekend at a site with no electricity. I will be using a Coleman battery powered (4 D batteries) pump to inflate it. It takes 10 minutes to inflate with the Coleman pump. However, the mattress does not get as firm with the Coleman pump as it does with the built-in pump. There is a 5/8" opening in the middle of the control knob on the mattress in which an external pump can be connected. The Coleman pump calls it a "Boston Adapter". So any external pump with a 5/8" outside diameter connector can be used to inflate the mattress. « Show Less
1572897
It has to be plugged in to work. No batteries, but has an on/off button. I have it sitting on top of some files in the lower part of my desk as it doesn't really radiate a lot of heat unless it's close to you. I like it though.
377592
It has to be charged. Other than that, there are no batteries for it. There should be blue and red lights on the side with the buttons when turned on.
350849
Plug it in after use and that recharges the built in battery (or batteries). I have used this probably six months thus far on small messes and battery is still doing well. Not even certain that you have to "change them out" at any time.
1140636
Thanks for your message.This item need to plug in to use and not batteries operated.Thank youProject E Beauty-Patrick
1968971
Mine has no battery; you should be able to plug it into your laptop or desktop
625400
It needs to be plugged into an outlet. There is no battery operation option. FYI: a steam room will corrode the electronics inside extremely fast.
56618
You have to plug it in. I am very pleased with its performance. It's a good aid in reducing mosquitos.
1140198
This model needs to be plugged in. The clock itself is heavy duty enough where I wouldn't see batteries lasting very long if they were an option.
552766
The camera itself needs to be plugged in. But the monitor can run on battery power, mine has lasted around 10 hours before we needed to plug it in.
2216316
Yes it must be plugged in. There's not a battery. Nice little receiver I like it very mutch. Works well on a large system.
1884548
Yes I use it plugged in. I do not use batteries however, the picture is not the same mirror I purchased. I have a different model.
480076
I, frankly, don't remember exactly. But I have an impression that it's supposed to be plugged-in, no battery.
2092928
You can plug it in (plug included in package). It's a better option than batteries because the battery compartment is annoying to open.
1554367
I don't know what you mean by plug in in this device.It is battery operated.
2236990
It's battery operated, however, you can also use an AC adapter, but that's not included.
237918
Its not battery operated. It comes with ac adaptor to plug in cigarette lighter