Works very well! Charges quickly, surprisingly powerful.
I wasn't sure what to expect when I opened these, they were smaller and lighter than I expected. I plugged them in to charge, it took about 1 hour to fully charge them. I was pleasantly surprised by how strong the vibration was and by the different settings you could choose from. These toothbrushes worked really well! Both my son and I tried them and our teeth felt really clean after using.  I would definitely recommend them!
Rating: 5 stars