... manu control,simple operation 3, 27x optical zoom lens 4, Array IR Waterproof Camera Features:1,Unique design,patented product,with ... full metal meterial 2, with new led array chip,and it is military-level 3, Dynamic Noise Reduction(DNR ... ,it can effectivelysolve the high-heat cooling problem producedby (LED ARRAY)chip 8,Array IR Waterproof CameraTechnical Specification: