Is this a portable speaker or does it need to be plugged to the wall
342728
This speaker is a powered speaker, meaning that it has a built-in amp. It does require power either from the wall, or car converter, or battery pack (car battery size)
175119
Not sure 100%. It's a USB unit, and it requires a power jack. If you had a USB/3.5 mm adapter, I think it would work, but you would still need to have the unit plugged into the wall. Unfortunately, there isn't a battery option with the unit. There are battery powered speakers that will connect via 3.5 mm that can be purchased. I actually have one, so this I can confirm. Sound is great with this unit if you plan to use it near a wall power jack...
691585
It comes with a power cord that is used to charge the internal batteries. After charging, you can disconnect the cord and move the speaker around or keep the cord plugged in and play.
1650824
The speaker is hard wired with a maybe 2ft. usb cord. Must be next to usb source.
631465
It is stand alone. Must be plugged into the wall but works without any other equipment
1358781
nope but you do have to have it plugged into the wall. I use the USB cord that's plugged into the speakers and attach it to my iPhone plug. then use the headphone looking one for my cell! hope this makes sense
1527727
most likely, the speaker needs to be plugged in and charged. I have three speakers and that is the most likely answer.
948435
No problem dude! Its powerd by the USB port! You dont have to plug it on the wall
2228933
it has a battery that will last a couple of hours when fully charged, depending on the volume you are playing music at. it has a wall charger included with the speaker
813461
It plugs into the wall (120V AC) and has an internal power supply, no external transformer. It is not battery powered. Mine is connected to a desktop PC and sounds very good. I expect that it should sound just as good on a laptop.
2055090
These are powered by the computer, so there is no separate plug to the wall. They are plugged into the USB, and also have to be plugged into the speaker jack.
1182208
It does not need to be plugged into the wall. It can be plugged into extension cord. That would work.
868709
No, it is plugged into the wall. It is one of my favorite things that I own.
1722725
You can plug it into the wall but you would need a adapter part like the one that you use for your phone charger. The speakers come with a usb cord so that you can plug them into a computer for power, but if you plan on just plugging them into the wall like I did just use an old cell phone wall charger (the part the cord plugs into that is). Hope this helps!
1119842
This needs to be plugged in to an amplifier. It does not have an amplifier built in.
1525465
It's portable. We have been using it for almost 3 months now and love it. It does have to plug in to charge but once it's charged you can unplug it and carry it around. The part that stays with the baby does have to be plugged in though.
98762
No it plugs into the wall. I like mine, it has worked just fine. I do need to get a new set of head phones as my old ones do not work with this player.