The FM Radio can only be activated through the Smart Life app. To do so:
1) Open the Smart Life app
2) Select the Portable 5-in-1 Emergency Hub
3) Tap the power icon next to “FM Radio”
4) Select “Scan for channels” to start scanning for radio stations in your area. Keep in mind that the scan may take up to 30 seconds to complete. You can also manually look for stations by tapping the + or - icons.