batteries: 2XAAA batteries(Without) size: about 9 x 9 x 4cm Material: ABS colour: A-red white Package Contents: 1 x Visual 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. [EASY TO USE] - Turn the dial clockwise to adjust the time. It will alarm when the time is up. This visual countdown alarm can set the tone to loud or low, and the alarm time to 3 or 60 seconds. Requires 2 "AAA" batteries (Not Included). [SPECIAL NEEDS] - The classroom utilizes a Color disk to show the time left so that children can intuitively understand the passage of time. No distracting ticking, children can focus more on completing tasks. Perfect for special populations and people with constant anxiety. Recommended for all parents and teachers. [MULTIPURPOSE] - The advantage of this is to cultivate good time management habits, suitable for early education, schools, homes, and offices. Make great study , teacher , classroom , countdown , silent , kitchen , toddler , kids , and more! [TIME MANAGEMENT TOOLS] - Visual overcomes the inability of traditional to concretize the abstract concept of time. The visual depiction of "time remaining" enables children, students, teachers and adults to practically improve their time management, alleviate anxiety, refuse procrastination, and increase productivity.