Is it true that the device can only be turned on for a limited time?
629388
Yes that is true. They do "overheat" but since this is not a mechanical version it takes longer. believe the limit is two hours. Why you'd have it on for that long, I think you're safe.
629389
I use the product as directed and I have had great results; but before I found this product I went to my beautician and got professional treatments. The device my beautician used was a professional grade but even the treatments I received there only lasted a few minutes. The purpose of this device is to stimulate the scalp. I will say that because this device is not professional grade it may not seem like anything is happening but trust me, it is working. Gradually after a few weeks you will notice a healthier scalp and see stains of new stronger healthier hair. If after 6 weeks or so you see no results you may want to consult a Hair Specialist or Dermatologist. I use the product as directed and I have had great results; but before I found this product I went to my beautician and got professional treatments. The device my beautician used was a professional grade but even the treatments I received there only lasted a few minutes. The purpose of this device is to stimulate the scalp. I will say that because this device is not professional grade it may not seem like anything is happening but trust me, it is working. Gradually after a few weeks you will notice a healthier scalp and see stains of new stronger healthier hair. If after 6 weeks or so you... » Read More I use the product as directed and I have had great results; but before I found this product I went to my beautician and got professional treatments. The device my beautician used was a professional grade but even the treatments I received there only lasted a few minutes. The purpose of this device is to stimulate the scalp. I will say that because this device is not professional grade it may not seem like anything is happening but trust me, it is working. Gradually after a few weeks you will notice a healthier scalp and see stains of new stronger healthier hair. If after 6 weeks or so you see no results you may want to consult a Hair Specialist or Dermatologist. « Show Less
629390
Yes, it should be used continuously only for a maximum of 15 minutes, and then turned off to cool thoroughly. Otherwise, the mechanism may be ruined.
352597
There are settings for turning it off after a certain time, but none to turn it on. Mine is great for Seasonal Affective and I use it mainly in the winter.
79776
Should work as long as the device not being used is completely powered off.
56143
you can wait for a 10 minutes and try again to turn on......is normal your case.
1784085
no. you have to switch it on and off. it lasts forever and is handy for one or two people.
901303
yes - that is its purpose. anything that you can turn off and then on again by unplugging and then replugging in will work. The only caveat is devices that go into "standby" mode, like an audio amplifier, that need a second signal to go from standby to on.
703296
No, you can only use it to set the number of hours it should stay on before turning itself off.
1582851
You can if you want to. There is an 'on/off' toggle switch at the bottom. Even if you don't it does not drain the battery too much.
1435314
no, it is all the time as long as the unit is plugged in. the only way to disable it is to unplug it.
205083
Yes you can, however, I have had this thing for 3 months and it no longer turns on. I wouldn't buy it.
622811
Yes, but it doesn't have a easy off switch, so use the power supply jack as a switch to limit it to of two hours of use.
211932
Yes you can by taking advantage of the fact that the device actually has 4 individual timers. You would set timer 1 at 4 hours, timer 2 at 8 hours, and timer 3 at 12 hours.
1284256
I have not tried it, but I believe you can. All items plugged in will turn on at the same time.
1853161
The life of any battery is limited. I am keeping the unit plugged in for the time I have to used it.
1634584
Sometimes it will doesn't work so good, like you can't turn on it. You need to wait one or two mins, especially just after you charge it. And it just can use about 8 hours, otherwise it is good.
988171
honest, impossible. as soon as some action will impact the device it will start again. thats was the reason why i stopped using of this device.
298878
No, it can only be charging or in use. If the battery is full you might get a little time out of it but definitely not on going.