University of Arkansas Fort Smith Students use B A S U to stop crime

"Getting the pepper spray out, aiming it, and hoping you hit them might not be as effective as just scaring them off with a loud sound," said Taylor Wewers, UAFS student.
(credit: KFSM)
The UAFS students said this device would be easier to use than pepper spray.
"While pepper spray can be effective when used in close encounters, the [eAlarm] can be used at greater distances," said Raymond Ottman, UAFS police chief.​

Full article: http://5newsonline.com/2017/01/31/safety-device-aims-to-stop-crime-on-college-campuses/​