I'm sorry to receive your negative review. Starting August 1st, the price of all specifications in the entire market has increased, but I still kept the camera's original price for you. This order was essentially unprofitable..... However, since the NVR's raw material prices have increased significantly, we've adjusted the price.. I updated the price in real time for you, and you also didn't place the order.... Yet, you still gave me a negative review......however, still look forward to working with you sincerely..