Easily set smart phone notifications strong and non-intrusive vibration. It can quickly differentiate the source of each alert works with iOS 8 & up, Bluetooth 4.0 & up.
https://www.sereneinnovations.com/instalinktm-wearable-smart-phone-alert-watch.html
Address: 14731 Carmenita Rd. Norwalk CA, 90650
Mon Fri, 8:00am 5:00pm PST
Toll Free: +1 866 376 9271