The booster box in the image is the S-Chinese Pokemon Horizons Gem Vol.1, also known as CBB1C. Here's a detailed description:
Contents: Each box contains 15 booster packs, with each pack containing 4 cards, for a total of 60 cards per box.
Language: The cards are in Simplified Chinese.
Exclusive Cards: This set includes exclusive S-Chinese cards.
Card Design: The cards feature unique artwork, including Sprigatito, Fuecoco, and Quaxly. There are also art rares of the three starter Pokemon and their middle evolutions from Paldea.
Pull Rates: While there's no guaranteed pull rate for specific cards, there's at least one art rare per box.
Authenticity: The cards have an anti-theft feature in the bottom right corner, making them difficult to copy.
Packaging: The box is sealed and the cards are standard-sized.
Rarity: Some of the cards, like the Triple Rare cards, are very difficult to pull, requiring opening many packs.
Additional Information: This set is also known as the Scarlet & Violet series.