How is it powered? does it require to be plugged in to work or does it have rechargeable built in batteries?
1019750
It's cable powered. By a too short cable in my opinion. Battery powered would be so great, but no... Primitive mind hasn't perfected so a glorious thing.
1103813
Its built in and you charge it USB, you can also plug and play. Takes 4 hours to charge fully.
1054045
This is not powered by battery. It is powered by plugging it into an electrical outlet.
117817
It plugs in. I can't remember if you can use batteries too, we just always use the plug.
1296885
Not battery powered. Has a transformer that plugs into 120VAC. The transformer output is low voltage AC.
1460615
It's designed to be plugged in. I think it has a battery but it's only for when the power goes out.
1347156
It plugs in, but has an internal battery that charges in case you want to move it around. Lasts about 6-8 hours on its own in my exp. with it.
272883
Yes, it comes with a power cord and must be plugged in to function as it does not run off of batteries.
2054466
This one is plugged into a wall socket. The battery powered ones are weak in my opinion and do not last as long.
420980
Short answer: yes, it has to be plugged in always. There are no rechargeable or standard batteries in this device. This is seems not to be intended to be carried around. It should stay in the shelf or on the table. Hope this helps. cv
1914843
It is charged with a cord supplied via 12v outlet.Has an internal rechargeable battery buildt in. In the standby mode, I have left it on for 3 days and it worked. Great item, best I have ever had! You will not regret it I promise you!
2190061
It's battery powered so you have to buy batteries. I believe it can be powered with AC adapter but it doesn't come with it.
60065
It is battery powered. (Sorry I had to delete previous answer accidentally posted using our office account.)
2022135
has to be plugged in. My husband uses it in his work vehicle to help with his back. highly recommend it.
841543
it has to be plugged into an electrical outlet.. it does not work with batteries .. mine is mounted in front of an outlet and you can not see the cord
1766032
It has to be plugged in to work, but it works very well on dead batteries as well as keeping batteries charged in vehicles that don't get driven often.
1835685
no battery, not rechargeable. it plugs in the outlet, or it can be plugged in the car.. I use it only at home, not in the car.