Get a handle on your time with the new Time Timer PLUS. The new Time Timer PLUS protects its signature red disk under a clear and durable lens. The Time Timer PLUS includes a volume control dial to help reinforce when time is up. Portable and silent, it is a great way to promote efficient time management at work, school and home. Additional features: Patented Red Disk, Precision quartz movement (1 AA battery), Intuitive clockwise motion, Silent operation - no ticking!, Optional alert when time is up, Impact-resistant case, Oversize numbers. Measures 14cm x 18cm.