Buying Personal Foot Massager

Hi all,

I will be visiting Japan in May. I have interest in purchasing a personal foot massager (as well as other portable relaxation devices). I've checked online, the package is about 18 kg (so I can take it with me as luggage). My question is regarding the difference in electricity. Since I will be using it in America, would it cause any problem if I use that with a electricity converter (to convert it back to American voltage)? Specifically, would it cause the device to not function correctly or possibly shorten the life span of the device?

Thanks,
David

I think it works well if you connect with an appropriate converter.