Fast becoming our most popular timer, the Time Timer PLUS packs all the features that have made our timers the first choice of teachers, students, parents and professionals into a new design that's as sturdy as it is useful. Ideal for active kids or a day full of meetings, the Time Timer PLUS features a rugged case and durable clear lens to protect its patented red disk. And the new on-the-go handle makes it easy to take the timer anywhere you go! Benefits: • Teaching children the concept of elapsed time • Making homework and practice time more productive • Reducing conflict in family and household routines • Managing the stress of transitions by showing "how much longer" • Empowering teachers to teach instead of constantly monitoring behavior • Increasing performance on tests and in the workplace • Keeping meetings on time and moving forward • Transcending language and culture barriers Features: • Volume control dial for those times you need a louder tone and those when you prefer silence. • Lightweight anti-static disk • Silent operation • Size: 5.5 inches by 7 inches • One AA battery required for operation (not included)