TECSUN PL-310ET FM Stereo/SW/MW/LW World Band PLL DSP Radio Black by allnice Pl-310ET has ETM function, which makes it possible to automatically scan for new stations and temporarily store them within the ETM Memory, and not overwriting any existing stations in the radio's memory. Large capacity storage. Freestyle dynamic page can set to 10 pages, 25 pages and 50 pages to store 1000 Group Radio information. The direct frequency entry, you can easy to turn into a station that you know the band frequency. Or you can use the ATS (Auto Tuning Storage) functions on FM / MW / LW & SW bands, all the available stations will be stored in the memory automatically. Special design of SSB demodulation functions, can receive amateur maritime communications and personal radio. Sleep timer setting can set the automatic shutdown according to your life habits. Interference switch, to facilitate acceptance in the strong radio interference environment. AM wide/narrow bandwidth selection. Wideband can improve the sound quality of strong signal radio program; with the narrowband can improve the ability of adjacent channel interference resistance."