The key is in the "cloud."

KeyMe is a self-service "key duplication" all-in-one machine. It not only provides real-time key duplication services but can also store a digital backup of your keys. When you lose your keys, as long as you find a KeyMe, it can quickly help you create a new key.

It is reported that creating a digital backup of your keys using KeyMe is completely free, so as long as you're willing, you can store as many keys as possible on KeyMe's cloud servers. However, if you want to make a key that is stored in the "cloud," it will cost $19.99. Of course, users can also choose not to create a digital backup for their keys and directly use KeyMe to create a key, with prices ranging from $3.49 to $5.99 depending on the type of key selected. (To attract users, KeyMe has specifically designed a key with a "bottle opener" function.)