The Sangean DT-800 is the last pocket radio you will ever need to buy. It has everything you could want, in a small, pocket sized portable radio. The NOAA Weather Alert emergency channel sounds a very loud audible tone when an extreme weather condition is imminent and/or a police emergency or child abduction has occurred or any type of Public awareness becomes critical. To conserve battery life The DT- 800 provides an option to select the time you would like the NOAA Alert to be active and the LCD backlight flashes to remind you that the alert is on. In addition to emergencies The 7 NOAA channels provide up to date general weather information useful if you're planning a trip or just a picnic for the weekend. The large backlit LCD display clearly displays the time, station, battery life indication, Alert indication and all other pertinent information. Sensitivity and selectivity is remarkable and comparable to many of the better stand alone AM/FM table top radios. Advanced PLL Synthesized digital receiver provides drift free AM/FM reception. Dynamic bass boost adds to your stereo musical listening pleasure and 45 preset (20 AM, 20 FM, 5Wx) selections lets you mix AM/FM stations with immediate access through the "page" Button.