Generally speaking, there are two kinds of USB rigid piano. One can be rolled up and the price is relatively low (200-400). It can be used for recreation and never for fingering. It feels basically the same as knocking on the table. The other is a keyboard similar to an electric piano, which has a sense of weight but is expensive (about 3000 yuan). With that money, you can buy electrical steel or second-hand piano.
Taobao sells a lot, m-audio? AXIMO？ The price of 6 1 is around 2700, which is very convenient. Can you buy a synthesizer with its own timbre if you can afford it? Recommend G6