Adjuement brightness reducing eye strain during nighttime checks while maintaining energy efficiency operating Wakeups with the Digital Alarm Clock features vibrator, brightness, and with temperature display for bedroom upgrades Ideal for heavy sleepers needing vibrations alerts, students requiring quiet operating, and professional home / decoration With LED screen, this rectangular clock offering clap / tap activations, for versatiled use Perfect for nighttime visibilities in bedrooms, discreeted time checking during hour, and maintaining sleep friendly environment design