Does this power via USB, or does it take batteries?
249591
I belief via usb because there is no place to insert batteries, I have not been able to use it, I dont know if im doing something wrong or if my settings are not correct. They keyboard does not come with instructions.
891507
The fan is powered either via USB cable or batteries. It does not come with batteries. You can use rechargeable batteries if you like, but the fan will not recharge them when plugged in.
317478
This unit runs on USB power. There is no need to plug this into an electric socket.
2085819
Yeah! So I've plugged mine in for a power source, but it takes batteries.However, it doesn't have a speaker/amp so you'd need to orchestrate a way to do that
1331295
It is powered off the USB bus. I use an adapter plugged into 110 volts to insure constant adequate power (because some USBs have more power than others).
1560224
Good question, dont remember if it actually does. I pretty much use it via USB power.
135557
As far as I know you can power it with a USB but not charge the batteries. I occasionally use a stand alone, rechargeable power source for mine.
1731888
Already answered, also keep in mind this is a desk lamp, the USB port is for charging there are no batteries in unit.
2068000
no need for batteries. usb connection will charge the device. it seems to last about 7 hours on a full charge. the lights will indicate charging and when charging is complete.
1403031
It has a separate power supply, unfortunately it is not USB-powered.Hope this helps & enjoy.
1460878
It is powered by an internal battery. It is charged by a charger that comes with it. The charger plugs into a wall outlet, it is not a usb charger.
1100604
No, to power it, it came with a USB cord that can connect into a USB port on a computer or USB wall adapter.
245058
Oh, power options are rechargeable batteries or 3 AA batteries. I have not tried charging from the pc usb port yet.
2107253
It doesn't, I'm almost 100% sure of it. It gets power via either AA batteries or a USB connection. FYI: My fan stopped working after using it for just one week. I can't figure out what's wrong. Hugely disappointing since it's so quiet and has a nice appearance.
998661
It can be powered via USB also I won't really worry about the battery reaching the end of its life span.
577168
I only use it with external power, but I believe I recall reading that it can not be powered by USB.
1734231
Can use the A/C adapter instead of batteries. Have not tried to power it with just the USB, but it might work.