SadoTech Portable Vibrating Flashing Doorbell - Receiver Vibrates (with belt clip), Transmitter Button and Plugin Receiver Flashes for the Hearing Impaired, Model H (White) AS SEEN ON BUSINESS INSIDER, FOX, ABC, NBC & CBS News - "It's built well, and it has a nice minimalist style" - Business Insider, 08/21/15. Our doorbells are great looking, loud, and reliable. The ultimate doorbell for your loved ones so they will NEVER MISS ANYONE at the door! Award winning doorbell that was designed for ASSISTED LIVING and SPECIAL NEEDS cases. Designed specifically for the BLIND, HEARING IMPAIRED and SENIOR CARE. Be sure to trust your loved ones to the SadoTech doorbells Great tool for BUSINESS and STORE OWNERS working in NOISY ENVIRONMENTS by using the VIBRATING RECEIVER (with belt clip) The remote transmitter button sends a wireless signal to EITHER OR BOTH the plugin receiver and/or the portable vibrating receiver Includes 1 x plugin receiver, 1 x portable vibrating battery operated receiver unit with belt clip, 1 x remote transmitter button includes A23 battery, 1 x double-sided tape, 2 x screws and anchors. Portable receiver requires 2 AAA batteries which is not included. DOWNLOAD OUR "10 MORE WAYS TO USE SADOTECH DOORBELLS GUIDE - Did you know that our customers use SadoTech doorbells to train dogs, teachers love using it to quiet down classrooms, seniors and disabled use SadoTech doorbells as assisted living call pagers, and more! SCROLL DOWN on this page to the Technical Specs section below and click the Application Guide link to DOWNLOAD the PDF file. Open it with Adobe Acrobat Reader. WANT TO LISTEN TO OUR CHIMES/RINGTONES BEFORE YOU BUY? GO AHEAD - Just SCROLL DOWN to the Technical Specs section below and click on the Specification Guide link to DOWNLOAD the PDF file. Open it with Adobe Acrobat Reader to play all 52 ringtones. Were proud to announce weve developed a custom music chip in our doorbells that includes carefully selected. Over 50+ different ringtones. Operating range of over 500 ft (1000 ft in open area). 4 levels of adjustable volume from 25db - 110db. over 50+ different ring tones. operating range of over 500 feet (1000 feet in open area). 4 levels of adjustable volume from 25db to 110db. The remote transmitter button sends a wireless signal to EITHER OR BOTH the plugin receiver and/or the portable vibrating receiver Plugin Receiver has 4 operating modes: 1) Only LED Flashing 2) Only Music 3) Flashing+Music 4) Power Off Portable Vibrating Receiver has ON/OFF switch and volume and chime control buttons. Comes with optional belt clip.