Ocean Signal MOB1 is one of the world's smallest personal Man-Over-Board devices with an integrated DSC (Digital Selective Calling).
It's easily installed on life jackets, and activates automatically during inflation. Once it's activated, your MOB1 will transmit an alert to AIS receivers and AIS enabled plotters in the vicinity within 15 seconds.
An additional feature of the MOB1, is its ability to activate the DSC alarm on your vessels VHF, alerting your crew to the situation.