30Hz,It functions normally, just like a photo. Because of the mobile phone shooting, the actual observation with the eyes is clearer than the photos taken.

  This is a pre-owned item, so I can't make extensive guarantees. If you need more details beyond the information shown in the product photos, you may contact me to arrange a functional test, provided I have the available conditions to do so. Once the item is shipped, return requests citing seller-related issues will NOT be accepted, unless the item is damaged/lost during transit, or the received item is inconsistent with the photos.