where does it get it's power
2074856
It uses 3 AAA Batteries. It says "Battery Powered" in its description. It's a great speaker, very loud.
576110
I don't think there is supposed to be power there, I think it is only supposed to switch power you bring in. I'm not positive, but that is how I'm using it.
559861
it requires a DC power source. If you want to use AC power you will have to convert it to DC.
15121
It's got a power supply with it. I have that plugged into my power strip...
2240703
Yes, it does. You can use you computer to link it too also, but it always has to have power.
873506
good question I never thought about it .I believe it will electricity travels
1747603
I do not see any indication that it does, it doesn't offer any power once unplugged and I cannot see any other reason for it.
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).
1553035
It can be powered by either. Don't waste your money on this product though. Very poorly made and breaks easily.
1744371
Joe- it picks up power through the cable attached to your telescope base unit. There is no individual power source for it.
1307147
Not sure what you mean. It's powered solely by the USB outlet you plug it into. If you want to charge something through it that needs serious voltage, you need to plug it into a high powered USB outlet.
74715
It uses special solar batteries which are powered by sunlight. That's how they recharge.
1070137
It powers itself! Once you start the fire the heat will start hitting the copper probe and within a few minutes the fan kicks on.
6296
The wiring diagram is somewhat confusing, but it draws power from the same source that it is measuring.
1872875
It doesn't lose much power, but it doesn't have much to start with. For the size and weight, it's remarkably weak. My old one, which served me well for over 10 years, is much, much better.
1230799
It uses wall current and can use batteries. Wall current should be your primary source as batteries don't last very long in this device.
619047
The power source is a little circular 3V internal battery. It is included with the device. There is also a light receiver on the face of the device that I assume contributes to managing battery power.