Easy InstallationEasy to use, you can hang it on the wall or mount it for daily use. Baffle Cold Air Deflector, Retractable Wind Shield, Air Conditioner Vent Shield, Universal Windscreen, Wall Mounted Anti-Direct Blower for Baby Room. Long Service LifeMade of high-quality ABS material, designed to be durable and resistant to heat. Clear and PowerfulBuilt-in 90dB speaker delivers a loud and clear chime when pressed, ensuring you can hear it throughout the home and won't miss visitors. Environmental ProtectionNo batteries required, helping reduce environmental waste and save money over time. Security ProtectionHelps prevent unauthorized access, providing an added layer of security for you and your family. Note: Measurements are manually taken; please allow 13 cm variation. Due to differences in lighting and display, colors may vary slightly from the images. Product received may differ slightly in appearance.