Our company,RG electronics,located in Seoul,korea.Our main export items are Secutity System Equipment(CCTV Equipment,Lens,Video Door Phone)& SUN OPTICAL LENS.-CCTV :CCTV DAY/Night/Underwater(IR Snesor)camera,CCTV Color,B/W Camera / Monitor, DVR-16ch, Time Lapse-Lens : SUN OPTICAL CCTV Lens,Varifocal Lens(3.5~8mm, C-mount/Board type),Board Lens,Pin Hole Lens-Video Door Phone : Stand Alone, Apartment, Intercom**Special offer: If you want buying KOREAN'S OTHER BRAND CCTV PRODUCTS, LET US KNOW. I'll supply to you.*****