- Weather Resistance Performance : This doorbell features IP44 dust and water resistance, ensuring reliable operation in extreme weather conditions. It performs effectively in temperatures as low as -4°F (-20°C) and as high as 140°F (60°C), maintaining optimal functionality in challenging environments. - Three-in-One Design with LED Indicator : This versatile 3-in-1 wireless doorbell not only serves as a traditional doorbell but also includes an LED indicator. This dual notification system provides both auditory and visual alerts, ensuring you never miss a visitor, regardless of the circumstances. - Dual USB Port Output : With two USB ports offering a total output of 10W (5V/2A), this doorbell doubles as a charging station for your devices. Charge smartphones or tablets conveniently while enhancing your home security. - Volume and Chime Selection : Customize your doorbell experience with volume adjustments ranging from 0 to 110 decibels. Choose from 36 different chimes and tunes, allowing you to select the perfect sound for your home. - Dual Plug-In Receivers and Extended Outlet : This package includes two plug-in receivers and an additional extension outlet. You can easily place receivers throughout your home for maximum coverage without losing valuable power sockets, streamlining installation and connectivity for appliances. Use Scenarios : - Install near the front door to ensure you never miss guests arriving, even in noisy environments. - Use in remote areas of your home, like a basement or backyard, with the secondary receiver to be alerted of visitors. - Utilize the USB ports to keep frequently used devices charged and ready while ensuring an effective home security solution.