This product is an exquisite penholder, with a variety of functions, such as large screen display time, calendar, week, temperature, etc. There are music alarm clock and sleeping mode for choice. The electronic screen can be removed to replace battery. Battery included. Perfect combination of penholder and bell. It will hold all your pens, rulers and markers, keep your desktop clean. Practical for students, teachers and office professionals. 3 7/8" L x 2" W x 4 3/4" H