Baseus Heyo Hidden Camera DetectorUsing Instructions *Note: According to the experimental test, the use effect of this product is also affected by the user's vision and observation angle 1. Switched the Product to the second gear flashing mode after startup (press the button and switch to the second gear) 2. Please place the product 90 degrees vertically close to the eyes and look at it directly 3. Make sure to use it in a dark environment for better effect and used within 5 meters of