what is the power source? Batteries?
1486378
Three AA batteries According to this link http://techland.time.com/2013/07/25/finally-a-shower-curtain-with-a-built-in-ipad-pouch/
1391875
you don't need a power source, the display goes when you cycle. comes with a battery.
1765961
I guess there is a external power input, but it does not come with an adapter. so pretty much batteries only.
472270
If by power source you mean battery.. The pen top unscrews where a USB port is exposed and this is how you charge it.. It takes about 5 hours to burn through the stored energy however I used mine so much that it no longer works. Very novelty but that's pretty much it.
1712860
It does not use any battery. It connects to your source and the power is derived from your source i think.
1953976
You can use either power source. It comes with an AC adapter. I purchased a separate battery pack for travel.
247429
i havent used it yet.i bought it at the end of the season.if i remember its only power source is external/boat battery.i only took it out of the box to make shure it would power up and work.
492970
It does not take batteries. You need to find a power source that connects via usb cable. Look up usb power source
2184607
It is only battery powered. 4 AA batteries. We have 2 of them. They are loud. We like them. We had them hanging on walls for 3 months now and the batteries are still strong. We only turn them on/off when we leave home. WE are happy with our purchase
1203403
The power source is battery.I think it is 9volts not sure but it is battery operated.
398829
Batteries, but good luck. The quality of the screws locking the battery compartment is so poor that three of us adults could not get them out. I would definitely not purchase this.
1878816
I believe it's just batteries, it was a gift for my mom and it won't take any kind of batteries we have found.
1611897
Yes, the power source charges battery. This is a cheapy made unit but can be helpful. I went to radio shack and bought toggle switch to put in between the connection to battery so I could turn off as soon as possible because batt. is so small and used x-mas ext cords for hookup.
366520
It's battery or ac powered. Mine only was used about 6 times before it broke.
1033079
AC power is the primary source and the battery is the backup. FYI I used it for two months with just the battery and it worked fine.
330613
It came with batteries. I simply turned it on when we recieved it. They havent gone out yet so im not sure what kind of batteries it takes
638085
Batteries are included. not sure which ones, as i haven't had to change it out. But i can look if you need to know.