There are four types of prize earphone jacks, each depicting "small and cute" Ellen, Mikasa, Armin, and Levi. You can get 1 earphone jack for 2 target products.
The target products are ollie bee salt, jagarico L size salad, jagarico L size cheese, vegips onion pumpkin potato, vegips sweet potato and pumpkin, and pizza potato. All are Calbee products.
By the way, it is said that the QR code that can access the download page of the "standby screen (wallpaper) of the newly drawn illustration" is printed on the mount of the prize.