Does it require batteries or outlet plug in?
613985
It does not require any power source other than the HDMI cables you're using.
1275162
There are no batteries necessary. The unit is powered by a transformer that plugs into a standard wall socket.
1966028
It needs to be plugged into the wall socket at all times. No battery operated function.
2229274
No, definitely not battery operated. It has a cord with the normal plug for normal household outlets.
1126340
Does not operate on batteries. Needs to plug to wall outlet or power through the USB cable into the computer.
1089313
This set does not operate on batteries. It must be plugged into a wall outlet.
1212823
it must be plugged into a wall socket. Or if you have a power inverter you could use a 12vt outlet. It does not have a battery in it.
1455557
No batteries, you have to plug it in. It does work, beautifully, and so energy efficient.
1569732
It must be plugged in. But it does have a battery because there is a CAUTION: Risk of explosion if battery is replaced by an incorrect type.
447207
This item does not have a battery. It must be plugged into a wall outlet during use.
2022131
When I used it it was plugged in to car outlet. Not sure if battery powered.
2043161
No, it does not plug into an outlet at all. It only uses batteries and plugs into the telephone jack.
166982
no. But I have mine plugged in beside my chair. Just turn it on when needed. I have never put batteries in. If you travel you might want the battery option.
143758
It has a regular outlet plug so you could plug it in somewhere but does not have batteries
899841
Yes, it plugs into electrical outlet. Sound is good plugged in but not when running off of battery. I gave mine away after ibe week of use. Good luck
1551261
The does not have a battery. It works with an adaptor that plugs into your regular wall outlet.
1564647
I never installed batteries but as I recall it needs them or the AC power to operate.