... 2.Patent: 200820164981.3 3.CE,ROHS 4.110db,waterproof,anti-saw,,hang tag 5,manufaturer,OEM offered Detailed Description:Item ... bad weather, Resistant physical destory, Waterproof .steel cable(anti cut & saw), cable diameter : 12 mm3 pcs AG13(4.5V) button batteries , battery ...