are these usb powered ?
222566
No, these speakers are outlet plugins with headphone jack connectors. I do not use this system anymore.
1614843
Ask the seller for sure, but they were included with a usb charging cord on the one I bought.
831936
No, power is only needed when using items that exceed your computer's usb maximum millivolt output.
1533276
Yep, it's USB powered. It also comes with variable fan speed and the blue light looks pretty cool.
1373173
These are not battery operated. They plug into standard household 110volt AC outlet.
799677
I'm not sure, but I regret buying them. They did not help at all. I need to look for ones that are powered.
1190985
honestly I am not sure but they are usb so it seems like they would. I think you can send them back if they don't, but don't quote me on that.
449947
No. I'm pretty sure it says somewhere in the product description that the device can't be powered by a USB port.
1480558
They are rechargeable. and it is powered by an AC adapter. Like other have said, I would not purchase these. They are very tight on the head and the inputs are not stable.
1604822
No, it's USB only. Just FYI, I recently went ahead a bought another set after my first one quit working after a few months. I thought I would give it another try, because I liked it when it worked. My second set quit working on one side in about 6 weeks. So, I won't be giving it the third try!
2055086
Yes, just plug them into your USB (that's the only way you can). I've bought other brands that required plugging them into the USB, but this was the only brand I've purchased that worked as advertised.
1200178
I have not tried that but it seems to me that they would work anywhere there is a USB outlet.
1358782
Yes they do- The usb cord coming from the speakers acts as a power source- unless you use a bb or iphone charger for the wall
329660
Not at all. These do all the work so your system doesn't have to. You do need a VERY good powered USB hub especially if using more than one.
474735
No, I draws its power from the mother board. You may be thinking of USB hubs, which often require external power. Hope this helps.
80677
Powered only by the USB from speakers to computer. Which means you do not need AC power to use. I love mne.
197957
No, they do not need to be plugged into a power source, and yes they draw power from the computer.