Time Management -- What can you get done in 60 minutes? Improve time management, perform tasks effectively, complete your work, and encourage productive learning with the 60-minute visual classroom . Easy to Use -- Turn the dial clockwise to adjust the time. To turn the off-simply turn back to zero. Requires 2 "AAA" batteries (Not Included). Kid friendly -- No distracting ticking. visual feature a blue disc making it easy for children to understand the passage of time visually. Set the tone to loud or low, and the alarm time to 3 or 60 seconds. Applications -- Great for classroom, home, and office settings. Makes an excellent classroom , countdown , study , toddler , kids , silent , kitchen , clock, time tracker, and more Colour:black Material:ABS Size:8.8 x 8.8 x 5.4cm Package Contents: 1X Visual (2XAAA batteries Not Included) 1X English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.