The item shown is a flexible, roll-up silicone keyboard, commonly referred to as a "Flexible Keyboard".
Portability: It is lightweight, ultra-thin, and can be rolled up for easy storage and transportation.
Durability: Made from silicone, it is typically waterproof, dustproof, and resistant to spills.
Design: Features a compact layout, often with a squishy feel to the keys, and connects via USB.