Product information: WD1152 IQ America products increase security to your property, save energy/money, and help to welcome your visitors. Our products encompass a variety of solutions for your home and business. IQ America products are synonymous with innovation and quality. IQ America offers a wide variety of entry notification products. Our modern designs, built-in intelligence and a category-leading sound offering set our doorbells and buttons apart. IQ America's entry notification products can help achieve that peace of mind. From our traditional offerings to new innovative products, our set of solutions can transform your home to a welcoming AND SAFE environment. IQ America offers a variety of product types, including: Wired and Wireless options, Intelligent Hybrid Doorbell Technology, WI-FI Enabled Technology, Video/Audio, 2-Way Communication, Specialized Entry Solutions, Products for both home and business. This Plug-in chime comes with the door chime and 2 push buttons door bell only, It's simple aned easy to install. Benefits: Wireless Plug-In Doorbell Door Chime kit - 2 Melody, 2 buttons for front and back Adjustable volume Easily added to any home and installed anywhere, even as a portable chime 2 note Melody Range up to 100 feet, signals pass thru doors, floors and walls Adjustable volume