Is it powered by air?
598471
Pneumatic indicates powered by air. So yes this is an air powered tool. And it works well for the price.
331628
Yes it is. but it is not powerful enough to charge it as fast as it uses power if the battery is not previously charged and you are just charging with the sun. You will need to charge the battery in the solar panel with the sun or usb port for a few hours before charging your ipad air
1296885
Not battery powered. Has a transformer that plugs into 120VAC. The transformer output is low voltage AC.
456054
No, it is only battery powered. Not sure why anyone would really need that capability, provided you can plan ahead an hour or so to charge a depleted battery, if that is ever the case.
1111716
It isn't powered. It's just the flat bottom piece, two vertical tubes, some carbon, and plastic heads for the tubes. You need a power head or some other air-blowing device to make it work.
961448
No. It's powered by a small AC to DC adaptor. You do need to factor that into the installation.
457457
No... this is air powered. Just add about 80 psi of pressure and you are ready to go.
1793134
It is not battery powered. It is plugged in. I bought around Christmas and I have had no problems with it.
1964713
No. It is battery powered. Batteries last about 6 months. It is a great item.
1628850
No, it's not electric-powered, and it's configured so that it will sit very unobtrusively among your components. I love it!
366520
It's battery or ac powered. Mine only was used about 6 times before it broke.
99062
It is not. You will still need to power it via the included power supply (AC adapter).
491889
Yes, it is powered as noted below. Very tight bass, and great to have an adjustable power control to get the best setting for the room. Optimum to be placed in a corner, since it is downward firing speaker.
59497
It is powered through the USB port. Just plug into the USB port and it is ready to work.
1827851
It is powered by a proprietary AC adapter and cable. It is not USB powered, and has no USB ports.
316832
The plug uses 50mW with no load. That's with absolutely nothing plugged in to it. So yes it does use some power but its a miniscule amount.
125599
It is not, it is only powered by 2 D sized batteries. They last quite a while though.