Forecum Easy Chime Wireless Doorbell Kit with CD Quality Sound and LED Flash 36 Melodies to Choose-B Easy Chime Design - It's Easy to DIY. Long-Range - Up to 100 meters (300 feet) range, provides the performance to work virtually anywhere in your home, you'll be sure never to miss a visitor's arrival no matter where you are. Versatile Feature: 36 CD-quality sound tunes, adjustable volume from 25db to 85db, flash light for the elderly, IP44 rated push button, no interference from any nearby wireless products. Easy installation: The chime unit can be free standing or wall mounted with the included hardware, push button can be fixed to the doorframe with screws or the attached adhesive tapes. Use it for front, side, or back doors to gain security and peace of mind.