Check the listing for details. Caregiver Pager Wireless Call Button for Elderly,Intercoms Wireless For Home. Color: Black, Condition: New. Listed at 19.99 USD. A wireless doorbell caller product designed specifically for emergency calls. We have adopted a prominent red color and oversized button design for the SOS button, making it easier for people in need such as the elderly, patients, and disabled to use them. Waterproof design, can be installed in rainy areas such as bathrooms and toilets, and can be used normally. Wireless transmission distance of 1300 feet can easily cover every corner of the home. With a maximum volume of 110 decibels and high fidelity speakers, it can make you hear call tones no matter where you are in your home. 5-level volume adjustment, adjustable from 0-110 decibels, will not affect baby sleep. LED flashing reminder, even in silent mode, you can still receive call for help messages. 55 ringtones.