Features: * Dual scissors-like structure, in double wire cable lifting and drawing theory; * With step motor, for stable lifting; * Noiseless lifting; * Wireless remote control; * With central control connection interface, facilitating centralized management; * Precise and accurate positioning, convenient installation; * Adjustable position and inclination of projector; * With white steely bearing plate; While lifted properly, be even with the ceiling; Elegant and good-looking; * The complete machine can be divided into 3 parts; Easy installation; * Centralized management of SV-PRO, SV-PROII, SV-9000, CRESTRON, AMX and other central control systems is achieved by means of the touch screen; * Applicable to high-grade videophone conference room, lecture hall, multifunctional hall, show room, sign-in system and so on.