ChieKoo Bell White Bluetooth Wireless Smart Doorbell. IFTTT Button. iOS and Android. Alerts users on their iOS and Android smart phones and tablets. IFTTT Capability. Generate additional audio and visual alerts via IFTTT integration. Easy To Install at Homes or Offices With Multiple Doors. Battery lasts up to 10,000 alert button presses. Does not need wiring, Transformers and Chime installation. Includes wall mount accessories and 2xAAA batteries. ChieKoo Bell alerts travel 150 ft inside buildings and up to 500 ft in open space.