Waterproof Wireless Doorbells For Home: IP66 Waterproof Grade Wireless Doorbell, Resistant to Low Temperature And Dust, Rain and Snow, Very Suitable for Outdoor. Onmyst Wireless Door Bells for Homes,Has Passed The Ce Rohs Fcc Certification. Wireless Doorbell Button With LED Indicator, Battery Life Up to 3-5 Years. Home Wireless Doorbell Applicable Places and Features: Wireless Doorbell For Home Transmission Distance for Indoor 65-262 Ft,City Square 360 Ft,River 1312 Ft,Can Also Be Used as Villas,Schools,Companies,Hospitals and Other Places to Use. 48 Ringtones Private Doorbells: Wireless Doorbell for Home Has 48 Tunes To Choose From, You Can Set The Private Doorbell Function for Family Members, Specific Ringtones to Remind You,and The Volume Can Be Adjusted.The Home Wireless Doorbell Is In Silent Mode And The LED Indicator Flashes,So That Even The Hearing Impaired Can Notice It. Installation Method Notes:Open The Transmitter,Remove The Mounting Bracket,Link The Button To The Bracket, Install The Receiver With A Household Outlet, Then Test And Set Up.The Wireless Doorbell for Home Button Just Needs to Be Glued Next To The Door Frame,Note That The Factory Setting Is Set to The Highest Volume,Do Not Install The Receiver Button on A Metal Structure or Accessory,The Computer Router Refrigerator Will Interfere With The Signal,Do Not Install It Near Such Appliances. After-Sales Service: If The Doorbell Does Not Ring,You Can Check Whether The Host And Button Power Is Sufficient, Check Whether The Host Is In Shutdown Mode,May Not Be Paired,You Can Re-Pair. If The Above Situation Can Not Solve Your Problem,You Can Give Us a Message,We Will Be The First Time for You to Answer Your Problems!