🕑 Electronic classroom countdown visual timer, up to 60 minutes time limit,red dial decreases as time progresses 🕑 Quiet Counting, ideal for classroom teaching time counting record,Student reading,homework kitchen cooking and office meeting 🕑 Dual colour dial panel, look at the time at a glance.Dual-piece magnet becside easy to stick on blackboard,refrigerator and more metal surface firmly 🕑 Alarm volume can be adjusted in 3 levels (Mute, Low, Loud), suitable for a variety of education teaching training 🕑 7.5 inches diameter size, requires 2 x AA Batteries (package included), big size, plastic materials