MySmile Teeth Whitening Accelerator Light Powerful 28 LED Blue Light Each 10 Minutes at A Time with USB Charger Mouth Trays Form Perfectly Teeth Care Oral(Only 1Pcs LED Light and 4ml Gel)

The on/off button is a little sensitive. Also, the complete ding noise is very quiet. Otherwise the battery seems to last for several days. Not having a USB cable is nice.

First time ever using one , so I don't have anything to compare it to. But I'm satisfied with the results I saw while using this product. I only used it a few or more times over a two week period and that was enough for noticeably whiter teeth. It's easy to use. I didn't find it as uncomfortable as I thought it might be. It had a nice feel while placed in my mouth and wasn't too bulky. The charge lasted me multiple uses in a row before having to recharge

I routinely use this and my teeth are pearly white. I would recommend this for whiter teeth, it works!!

I hesitated in using this just did not know what to expect and side effects. I receive an electric toothbrush 3 yrs. ago and decided to use it, no one should go without this, I prep my teeth making sure it is clean then I apply the teeth whitening pen I could immediately see the change in my teeth seems like it started immediately working on the stains. When I started, I measure at an 8 on the scale since it is the first time using, I can see the stain being work on, but I will give it a full week and see how it does.

It works but it does cause sensitive teeth.

works as described

Stopped working after a few uses. Don’t waist your money.

Honestly, I always thought that these types of products were a gimmick. But, WOW! I'm absolutely amazed at the results. After only two treatments, I could tell that I had a brighter smile. I did nightly treatments for the first week and now I just do one every few weeks to maintain the color.