SAME Technology to receive alerts/warnings for designated area.Weather Scan to find strongest NOAA broadcast.Home/Travel mode.3 Alert Options, Tone, Voice, Visual.Stores up to 9 County Codes The Midland HH54VP Portable Emergency Weather Alert radio will keep you up to date at home or on the go. With S.A.M.E. technology up to 9 counties may be designated to receive alerts/warnings. A great convenience feature especially when you are away from home is Weather Scan, which will scan and lock onto the strongest NOAA broadcast automatically. The unique Home/Travel mode lets you select the NOAA channel for your area the menu, while the Travel mode will scan and lock onto the strongest NOAA signal. The HH54VP Tri-Color LED gives 3 types of alerts, either “warning”, “watch” or “advisory” and features three user selectable alerts modes. Select from tone, voice, or visual (flashing backlight) for the over 60 types of alerts. The HH54VP uses 3 “AA” alkaline or rechargeable batteries (Not Included).