FM radio and sleep timer - The alarm clock with FM radio receives audio frequencies in the range of 76-108 MHz.There is an 83 cm long antenna on the back of the device for more stable reception.You can set the radio's sleep timer to automatically turn off when you go to sleep after a certain time without interrupting your sleep.180° rotatable, ultra-clear projection alarm clock digital radio clock can project numbers onto the ceiling or wall in the desired direction, with rotatable projection (-90° to 90°) and with three projection brightness levels.So you can easily see the time projection when you wake up at night.Press and hold the "Project" button to rotate the projection display 180°, optimal projection distance: projection within 3m-5m. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia