Wireless Doorbell with Self Power 38 Bells 4-Tier Electronic Doorbell with Temperature and Time Display in Black and Gold . IP44 WATERPROOF WIRELESS DOORBELL FOR HOME WITH TEMPERATURE DISPLAY Feature: 1. 38 MUSIC AND 4 VOLUME LEVELS: The wireless doorbell offers 38 music options, including voice ringtones from around the world, one-touch music switching, 4 levels of volume control, including flash mute. 2. TIME, TEMPERATURE AND HUMIDITY DISPLAY: The wireless doorbell ma Fahrenheit and Celsius settings available, allowing you to control and measure the room temperature in real time. Switch the display with one click. 3. HIGH RESOLUTION DIGITAL DISPLAY: The receiver is designed with digital display, printed circuit board display based on strong light, clear display, easy to read, improving visual reading pleasure. 4. EASY SETUP: Ready to use right out of the box, wireless transmission, plug and play. Plug the mini doorbell receiver into an outlet. Attach the button to the wall with double-sided tape. 5. LONG RANGE: This high frequency electronic wireless remote doorbell uses FM signal program, prevent interference, easily penetrate through the wall, range up to 100m. . IP44 WATERPROOF WIRELESS DOORBELL FOR HOME WITH TEMPERATURE DISPLAY Specification: Item Type: Self Power Wireless Doorbell Material: ABS Color: Black and Gold Transmitter power supply: Self-generating (pressing the button converts kinetic energy into electricity; no battery, can generate automatic power supply) Waterproof Level: IP44 Operating temperature: 0°C-99°C Operating Humidity: 0% -99% Operating Frequency: 433,92 MHz Melodies: 38 Volume: 4 levels Temperature display: Adjustable in Celsius and Fahrenheit Time display: 00:00 . IP44 WATERPROOF WIRELESS DOORBELL FOR HOME WITH TEMPERATURE DISPLAY Package List: 1 x Transmitter 1 x Receiver 1 x User Manual . IP44 WATERPROOF WIRELESS DOORBELL FOR HOME WITH TEMPERATURE DISPLAY