Mute Luminous Mini Portable Digital Electronic Clock Student Exam Study Pocket Watch Description: ❥Two AG10 batteries supply power for the luminous and display respectively, and the normal standby time is 2 years. (include) ❥High-quality ABS material, especially matching the quartz of the circuit board, the error of 0-3 seconds in 24 hours under normal temperature environment, reaching the international standard ❥Green luminous, bright and not dazzling ❥Embedded buttons ensure the feel of the buttons while preventing misoperation. The buttons with integrated functions are easy to use and simple to set up time. ❥The perfect mute and compact design make it suitable for examination, study, work and other occasions that need time Specification: Material: abs Size: as shown Note: There might be 2-3cm errors of dimension data due to pure manual measurement. There might be slightly color difference due to different light and monitor effect. Package includes: 1pc Electronic Clock Product Name:Silent and luminous mini portable digital electronic clock, student exam and study wall watch, black Package Contents:1pc electronic clock Item color:Black Material of the product:abs Product Dimensions:One Size