Package content: you will receive 4 pieces of electronic pets in 4 colors, including red, blue, yellow and green, together with batteries and operation instructions, enough amounts for you to play with your friends and families, bringing more fun and laughter to your daily life Measurement details: this nano digital pet comes in a small size, measuring about 2.2 x 2.2 inch, and the screen size is about 0.8 x 0.8 inch, compact and lightweight, easy to carry, 4 different colors and adorable house shapes can let you share with your friends and experience the fun of keeping a pet Virtual pets keyring: the virtual pet contains 168 kinds of virtual pets, you can choose your own pet, which needs to be taken care of, fed, trained, educated, played with, and so on every day, this will make you organized and make your spare time more fulfilling and interesting Easy operation: there are 4 buttons on the virtual electronic nano pet, namely reset, select, decide, and cancel, you can easily select and switch the pets or items you want according to the instructions, the simple operation makes it easy for you to get started and have fun Educational function: for young boys and girls, this handheld game machine will teach them to spend time and energy taking care of a virtual animal, bringing them more confidence and accomplishment while entertaining, it is a meaningful exercise before actually taking care of a younger sibling or a real pet