Is it rechargeable or does it need to stay connected all the time to a mains or PC with the USB cable?
67922
No battery or USB option was available. It needed to be plugged into the wall at all times.
67923
Agree with the first two responders, just connects to a regular electrical outlet.
67924
Needs to stay plugged into wall outlet all the time. Ifg you want it for travel, then fine but otherwise I don't recommend it.
67925
There is no battery, and no USB. This humidifier runs only when attached with the wall wart transformer to the AC mains.
1359699
Rechargeable via USB. I have found the battery to last a very long time on one charge. I would recommend the upgrade!
1135006
It is a USB connection back to your power source. I have kept it hooked to mine most of the time just like that
363749
I charge it with the usb. It doesn't last long. I am going to return it. Doesn't really work good if needed while out.
2006335
It has its own internal battery and you recharge it with a USB cable. Best!
998662
yes it is rechargeable via usb to your laptop.It will power up even if the battery runs out of its reserves. It should be powering up each time the Alpen is connected to a power source via USB port
1306226
You can use the supplied USB cable to connect it to your computer to charge. Once charged it lasts for ages
2171119
hi it is corded so yes you have to plug it in everytime. it is not rechargeable..
246408
Yes it has to be recharged periodically but it seems to last a long time. I use it every day and I charge it probably once per month.
1361071
It has a USB cable, you can recharge it on the wall outlet or computer!! We love ours!!!
631368
Battery life is very good (a rechargeable lithium battery). I have a an external charger and don't have to connect with USB.j:
1548360
It needs to be plugged in via USB. It can also be used on the PC if you have a joypad configuration program on the PC.
1674683
It has an internal battery and you recharge via USB either plugged into computer or a wall plug. You can also use it while plugged in.
291849
It uses a rechargeable battery, it comes with its USB cable, not the charger, but you can use any USB charger including your computer
281073
it's recharged via usb port on a regular computer. it then has a mini-usb port to connect one half of the speaker to the other half. the little magnets that hold the two halves together are good, too, they're strong enough to hold the speaker together despite being dropped off the night table onto carpeting! (and the thing i said about it stopping working? forget it. after i talked bad about it, the darn thing decided to work again!)
957126
it has a rechargable battery built in. I charge it every week seems to do the trick. Memory and battery are built in.Plug to USB port or USB adapter
552809
It's not a rechargeable device. It's need to be continuously connected to power supply.