... speaker ,Alarm clock ,cb radio Function :1. Normal display with time, 12hr/24hr system changeable(Default AM 12:00)2. Two sets ... alarm clock:1)BI BI music alarm clock ,2)Radio control clock , when ... 4. Speaker used in MP3,MP4,mobile,PC ect . 5. FM radio frequency LED display1)Frequency display :87.5-108 MHZ2)Both ...