... Features:1.High strength engineering plastics with metal internal structure.2. High performance mechanism with elegant appearance, high voltage surge ... endless pan, 180° tilt, 300 million steps per round, move smoothly with no shake, the speed range automatically. 9. Multiply ... link the alarm, 4 inputs and 2 outputs.13. Compatible with most camera modules such as SONY, HITACHI, SANYO, SAMSUNG ...