What is a KiT? One of the formats this is being released in…
It’s essentially a square key that you connect to your phone using an aux lead, Bluetooth or NFC and using a specific app, it downloads the album (and a bunch of other things) to your device. It’s a hybrid of a digital album (since you get the album, the photobook, etc. on your phone) and a physical album (since you get a bunch of photocards and other physical collectibles). Some groups have even released concert films in this format. I’m not exactly sure how popular it is, but I know of people who buy them when they are made because they tend to have more photocards in comparison to the standard physical album and some people only care about those nn.

Here’s an example of how they look and work: