Hersent Twin Bell Alarm Clock Battery Power Night-light Loud Alarm Roman Character Copper Clock Ha41 (4.5"Roman character) Loud alarm ringing for people who are heavy sleepers, mild loss hearing. Night LAMP FUNCTION , you can see clearly the time at the night. Non-ticking,Mute Silent Quartz Movement alarm clock,You can have a quiet sleep. Alarm Clock is one AA Battery Operated(Battery is not included). Product size: 3 inch: 11.5 * 8.5 * 8.5 (cm); 4.5 -inch: 4.5 * 11.8 * 15.5 (cm).