Fully support various practical functions such as up and down, left and right screen swiping, handwriting, picture-in-picture and song preview. Song ordering interface 1440*900 HD resolution, DELL620 original brand computer, 1000G, 1500G, 2000G super-capacity music library, fully meet customers' demand for easy and convenient song ordering, and ensure the machine at the same time. The price is within 1800, which is acceptable to the landlord. The landlord can deduct 565 1980 6 if necessary.