- Enjoy a 120-degree viewing angle with advanced optical glass lenses, providing you with a crystal-clear view of external visitors. - Enhance your privacy with specially designed door viewer holes, ensuring that outsiders cannot see into your home. - Quick and easy installation allows you to replace your door viewer in just 5 minutes, no tools required. Compatible with door thicknesses ranging from 35 mm to 65 mm. - The adjustable inner lid conveniently covers the lenses; simply turn the lid manually to secure your privacy when needed. Use Scenarios: - Ideal for front doors, enabling you to see who is visiting without opening the door, enhancing your home's security. - Perfect for apartment entrances, allowing you to maintain privacy while still having a clear view of guests. - A practical addition to office space entrances, where you may want to screen visitors discreetly without compromising on visibility. Choose this door viewer for an optimal balance of security, privacy, and practical design.