Purchased this wired cam but disspointed

Box is misleading about the internal siren. What good is a manual operation if motion is detected? Its for out doors. Why would this siren not go off when motion is detected?Dissapointed.Also found out that even if you set to "people", and create a specific zone, the stupid light still comes on if motion is detected anywherem eveb outside the zone. I expected a much better product, instead, very dissapointed.