HearClear batteries are custom manufactured by one of the three largest zinc air battery manufacturers in the world. This manufacturer has been selected for its unique balance of high capacity, high power, long shelf life, and anti-leakage design. We have sold millions of these batteries to consumers and hearing aid professionals and over the world, which allows us to confidently offer a 100% unconditional product warranty or your money back. Please allow up to 18 business days for delivery after package has left the U.S. Some locations such as Brasil, Spain, Greece, Italy, and Russia can take up to 6-8 Weeks for delivery and sometimes longer due to customs delays. If you selected USPS First Class International Mail and already made your purchase, please do not ask for tracking information.
