Prior to the counterfeit digital items appeared in the toys market, the cost of one easy digital toys which are made from an easy circuit board and two plastic shell is 50 U S buck and also even more. Accidentally, the Tamagotchi is just the beginning of the digital pet dogs toys worldwide. A few days later on, there are electronic pet dog, digital dinosaur and also other digital family pets in the toys market, what’s more, the majority of them are infused human feelings. As an example, if they are not fed well, they would certainly not grow extremely well and also can also pass away. Consequently the players of electronic animals must take great care of them just like taking care the actual family pets. What a pity, the crazy trend of digital pets is no more than ten years and also with the fast growth of network technology, these electronic family pets which can just be placed in the pocket have lost the good looks and also ultimately take a back seat. After the digital animals, there are simulation pet dogs such as Idog as well as Ifish in the playthings market, the size of them is always hand dimension as well as they can reveal their feelings according to the various commands, which is based upon a collection of sensing units.