FEEL SAFE knowing your contacts will be alerted with real phone calls and GPS location text messages if you’re in danger (for free). With the optional Professional Monitoring Service (available in the app with a paid subscription) an active tracking link will also be sent to a 24/7 call center that will contact local authorities. ONE BUTTON TRIGGERS ALL: Maximum strength pepper spray (10-foot range) with red marking dye and UV dye to ID suspects, free GPS text messages and phone calls to selected contacts, optional professional monitoring service, built-in 130 dB siren to attract attention, and LED strobe light for better aiming in the dark.