Item Dimensions LxWxH6.5 x 5.12 x 2.36 inches Power SourceBattery Powered Number of Batteries4 AA batteries required. Display TypeLCD 【Wireless Outdoor Sensor】---With a wireless weather station range up to 80 feet, the wireless sensor can be placed next to a window or mounted under a roof to monitor temperature and humidity outside. 【Multi-Functional Weather Station】---The Frost Alarm Function weather station also including a digital calendar, time(12/24 hour format), alarm clock snooze. The snooze function area has a touch button above the LCD display. The mini weather station can be wall mount or table stand. 【Two Power Modes Brightness】---Adjustable Backlight Outdoor Clock Weather station can be powered by adapter (included) or 2*AA battery (not included). The Home weather station screen will turn off automatically in about 10-15 seconds to save power when using battery power. The weather station screen stays on if you use a power adapter. Screen brightness can be adjusted with the button beside the weather station. 【Elegant Appearance and Color Screen】---The Wireless Weather Station is covered by a bamboo color plastic frame and shows a colorful screen with backlight, The color illuminated display Digital weather station provides a perfect overview of the measured values.