Beautiful wooden alarm clock with LED display, perfect for home and office use. It has 3 display modes and 3 alarm groups. USB or battery powered, meets different needs. In addition, it has a voice control function, which is power saving and will not disturb you when you sleep. Features: Wooden Alarm Clock : The wooden shell, which looks comfortable and beautiful, also has an excellent decorative effect. 3 Display Modes : Display time(h/min/s) only, display time(h/min) and temperature, display time(h/min) and temperature or date(month/day) in cycle. 3 Brightness Levels : The brightness can be adjusted automatically according to the time period. Daily Alarm Clock : You can set 3 groups of alarms every day, the alarm sound lasts for one minute. Weekend Alarm Clock Function : The alarm clock can be On/Off on Saturday and Sunday. Voice Control : In this mode, ambient sound will activate the LED display when the sound exceeds 60 decibels. Dual Power Supply : Powered by DC 5V (USB cable is included) or 4 * AAA batteries (not included). Specifications: Material: Wooden Shell + ABS Shell Color: Black/Natural Wood (Optional) Display Color: Blue/Green (Optional) Calendar: 2000 ~ 2049 Temperature Unit: °C / °F Temperature Range: -20°C~50°C / -4°F~122°F Built-in Button Battery: CR2032 3.0V 240mAh Power Supply: DC 5V 1A or 4 * 1.5V AAA Battery (Not Included) Item Size: 15 * 7 * 4cm / 5.9 * 2.6 * 1.6inch (L * W * H) Item Weight: 193g / 6.8oz Package Size: 17 * 9.2 * 5.5cm / 6.7 * 3.6 * 2.2inch Package Weight: 250g / 8.8oz Package List: 1 * Alarm Clock 1 * USB Cable (Without Plug) 1 * User Manual (English)