Body size: 8.5 x 14.8 x 5.3 cm Material: Plastic frame Country of origin: China Movement: Radio wave correction function (40kHz/60kHz automatic selection/reception OFF function) Accessories: 2 x AA alkaline batteries (battery life: approx. 1 year) *Manganese batteries are included as monitor batteries. Alarm auto-stop function (approx. 5 minutes), snooze function, light Full auto calendar function up to 2099, temperature and humidity display (temperature measurement range: 0°C to 40°C, accuracy: ±2°C, humidity measurement range: 25%RH to 85%RH, accuracy: ±8% (25°C) Battery depletion warning function (LCD), comfort level display (6 levels), 12-hour/24-hour display switchable This product requires batteries. When using, please place it near a window where it can easily receive radio waves, and avoid places where radio wave noise is generated. Y297