We often use cameras to record images of life, and sound as an equally precious part of memory is often ignored. Many people will become more and more fond of recalling the past as they get older, but they often suffer from the conditions of not having a person to talk to or record. The concept put forward by KERZE is to provide a new way for the elderly to record themselves by voice. People can use it to record beautiful clips of life, or to keep a sound diary, and to edit, classify, play and share. It can also be used as a social platform within the family to receive information from other family members. With its retro appearance and physical interaction, it reduces the difficulty and psychological barriers for the elderly to use smart products.