I bought it cheaply at 1 + 1. I do not use it strong. I use it because I bite or hit my teeth, but it stops working again.
My sister-in-law bought it for me and I bought it again for my nephew. I think it's just an old-fashioned one. It seems like it's unfair. ㅋ ㅋ ㅋ However, it feels cool and clean.
I bought it for my sister and brother, and I'm writing it, so I think I will buy it here for the second time.
Philips Sonicare ProtectiveClean 5000 Gum Care Edition