This listing is for the right earbud only of the Technics EAH-AZ100. The box is not included. Used only a few times after purchase. It plays and charges without any problems, so it is fully functional. *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.