then check the item on their website in the FAQS section it says: Yes, PowerPort Strip features international voltage compatibility for 100-240V. I had an old JBL 8" subwoofer that worked well enough for over a decade before it kicked the bucket. If your little one is usually a certain size get the size they usually are I went up a size just in case I got a 5 instead of a 4 but I should have gotten the 4 they do not run small and have a lot of stretch for those kiddos with very wide feet So great to have him doing this instead of on the iPad. Light works as advertised. But, each and every one of them has the great, supportive Alegria foot bed. I have to return them. I have a standard medium or B width feet. They hurt my heels (Picture 4) The L/R is subtle and marked inside the earbud.