CallToU Smart Call Button 500+Feet Nurse Calling Alert Vibration for Home Color:10 call button + 1 receiver How do I connect the

How do I connect the receiver to my smartphone

38 Ringtones & 5 Volume Levels: Personalize each button with unique ringtones (38 options) and adjust volume from 0 dB (silent) to 110 dB (loud)

8 ounces Manufacturer CallToU Country of Origin China Batteries 3 12V batteries required

The door buzzer entry system has 5 volume and 55 song（15 short ringtones and 40 long ringtones）

CallToU Smart Call Button 500+Feet Nurse Calling Alert Vibration for Home Color:10 call button + 1 receiver How do I connect thePay attention The watch can display call information from up to 4 buttons simultaneously on one screen. After more than 4 times, the oldest call information will move down and can be scrolled by using the up and down keys. The working distance is about 500Ft (in the open air), if you need a larger range and need to use it with a signal booster Signal enhancement device product link: https: www. calltou. com collections calltou accessories 1 products