... sets alarm clock:1)BI BI music alarm clock ,2)Radio control clock , when it reach setting time ,the radiowill open itself ... . Speaker used in MP3,MP4,mobile,PC ect . 5. FM radio frequency LED display1)Frequency display :87.5-108 MHZ2)Both ... ,press any key resumed display .7. Double power supply Special : Radio control clock , mini speaker Accessories: aux-in cable and USB recharging ...