powerful and light but tough to reach the inside spots [SEP] it s compact light easy to charge and the tip isn t too pointy well it s pointy but it s not a hook so i initially was afraid but as i used it i realized it wasn t going to stab my gumswhen i turned it on i was surprised at how powerful the little tip was sonicating i found it easy to use on the outside of my teeth but it was awkward to get to the inside of my teeth i think i will have to practice holding it differently maybe i bought this because i build up tartar on the inside of my bottom front teeth directly where my tongue rests i did mh best to clean there but saw only mild results after one usei will use it a couple more times and see if maybe i see better results and hopefully i will get used to how to hold it so i can access the inside of my teethnow if someone did this for me i think this little tool would work wonders it seems quite powerful i will keep trying and update my return if i get better results