There are many different types of personal emergency response ... The defining feature of any medical alert system is a button that you press that immediately connects you with medical help ...

Life Alert is a medical alert system created to help people in ... This medical alert service provides different types of buttons and a 24/7 emergency help service. Life Alert is generally best ...

Steam Beta Client users can now grab a special update for Steam Controllers that allows you to bind different types of button presses to different functions, which Valve is calling Activators.