Instinct by Revolar is a discreet personal safety device that sends text messages to your contacts on your phone with your current location, letting them know if your safe, unsafe or in an emergency. Instinct also lets you personalize your alerts and choose what they say and which contacts get each level of alert. The Silent vibrating feedback lets you know when each alert is triggered, so you can focus on the situation at hand. Works with iOS & Android. Water resistant (2m depth), military-standard drop proof (2m drop).