THE PRODUCT IS A LITTLE PRICEY, BUT YOU GET WHAT YOU PAY FOR. VERY GOOD NIGHT VISION CAMERA & THE LCD MONITOR IS JUST THE RIGHT SIZE FOR VIEWING AND OR USEAGE WITH EXISTING SECURITY EQUIPMENT INCLUDING, QUAD SYSTEMS. SINCE THE SYSTEM CONTAINS ALL THE NECESSARY ITEMS TO MAKE IT WORK, THERE REALLY IS NOTHING ELSE TO BUY., UNLESS YOU WANTED TO ADD A RECORDING DEVICE.