An electronic product that allows you to assemble yourself. It can open your mind and imagination, and can also train children and students. It is of great value in this respect. Arbitrarily issued 16 kinds of interesting analog sound. Control Mode: manual coding + external coding. It's much easier to assemble which is great for kids, begginers and hobbyist. Do it by yourself-. No professional qualification restrictions, very easily that every craftsman can use DIY fur to make a private custom "products" to express themselves. It can be assembled with toys and can produce as many as 16 different sounds, making very interesting toys; Can also be converted into doorbell, alarm clock, alarm, and so on.