If you have any questions, please correct me, thank you!

Based on the imagination of 5G Internet of Everything, a self-networking Bluetooth-controlled lower speaker is designed. The key is made of black silicone, there is only one opening key on the front, the left and right are the volume addition and subtraction keys respectively, and the power supply is in the form of type C interface and battery. The concave in the middle of the cylindrical shape is to make it more convenient to grab and prevent too many accidental touches. Use a robust red and black color scheme and then extend the gray, blue and green color scheme. Personal practice is not very good, there are mistakes hope to point out a thing or two