Works in short durations.
590165
What you would expect of a budget flip flop. Not very comfortable but its not a bad alternative for shower sandals at the gym.
1744996
It works, but is not very long. So if you need to charge you can't be far from the outlet.
1247441
Works well. Charge only lasts about 5 minutes, but recharges fast too.
4875058
Great for short runs. These work well with a splitter (such as Radio Shack Component Video Distribution Amplifier) to drive several devices from a single source, when the target devices are sitting in close proximity. Yields a neater installation.
2479192
This worked great for a few weeks and then just stopped working all ogether. For the price, I'm glad it worked for a few weeks at least. Can't expect too much
1718678
I used this at work because my hearing aids were being repaired.  I used it for about two weeks and it did what I needed it to do.
2949804
This works pretty good. But I don't know how good it is because I only tried it for a few minutes.
4553201
It only works for a few minutes then stops.  When it is working, though, it has a decent sound. Directions on how to use would be helpful.
4276476
It's okay but only worked for a couple of days.
459350
Works great for short time. Batteries die after a couple months. Once the batteries need replacing it is a pain in the butt to chance the batteries and never seems to work correctly after that.
341352
Worked for a few weeks. Barely hold charge 45 min. I basically use it as a backup in case the power cord comes loose.
4874921
Works well.  A little cheap, but it was inexpensive
2266966
Stopped working after only a short time of use. I bought two just in case and second one did the same. I wished they would have lasted longer.
560509
It works for short burst... Will over heat and stop working for up to 5 mins. Then will run again.
514469
They have worked for a little more than a month, but not one works Now.
Not worth, your lucky if they last two months.
They charge fast while they work but not for long.
410252
Makes short work of getting in-the-wall wiring pulled through the conduit.
4619506
Only lasted a few months with minor use (like an hour or two per week).