1.The blackhead meter has a built-in high-definition camera, which can zoom in on the skin and clearly see the acne removal process. 2. The blackhead extraction tool uses vacuum technology to suck out blackheads. There are 3 levels that can be freely adjusted according to your skin sensitivity. 3.Before using this blackhead meter, please use a hot compress for 3-5 minutes to open your pores. Please do not let the blackhead meter stay in one place of your face for more than 3s.Just slide the machine up and down in one direction slightly. After completion, please use a cold towel to soothe the skin of the face. 4.USB stable and fast charging, charging and using, easy to carry. 5.This blackhead vacuum cleaner with camera is equipped with 5 different tips for different facial skin conditions.