This is a listing for the left earbud only of the Technics EAH-AZ100. The box is not included. I have only used it a few times after purchase. It works perfectly, including playback and charging. *Recommended for those who have lost one earbud.* *Instant purchase is welcome.* Please re-pair the earbuds yourself after the product arrives. Please refer to the price.com forum for instructions on how to re-pair them. Thank you.