The only downside is the price. The company that developed and licenses Kleer must require a hefty payment for its use, as all the products that use this wireless technology are pricey. I paid hundreds of dollars for my earbuds and there are a few other choices I could have made that were even more expensive. Since I have a few sets of earphones in the past, that is my biggest worry – that I will lose them and my investment. It is really easy, since I travel a lot, to misplace things that are not tied down. I would really be bummed if I lost these earbuds since their sound reproduction is so great!