Features:  1. Permanent calendar to 2099 Optional 12/24 hour format.  2. Weather forecast function: 7 kinds of weather forecast in the next 24 hours (sunny, cloudy, cloudy, light rain, heavy rain, light snow, heavy snow).  3. Air pressure: the past 24 hours air pressure trend display, temperature unit select °F or °C, outdoor high and low temperature alarm function.  4. Transmission distance: 60 meters.  5. Wireless remote sensor: RF433.92 Hz RF signal transmission - can be placed to hang.  6. Daily alarm clock function and automatic snooze function.  7. Moon phase display.  8. With USB output charging function.  9. Backlight: Power supply mode: 4 different brightness backlights and turn off the backlight Battery powered: Manual touch product highlights for 15 seconds.  10. Two power modes: battery(not included) or power supply.  11. Use USB to charge your electronic mobile device.     Specification:  1. Air pressure measurement range: 17.72 inHg~72.50 inHg& 600 hPa / mb~1100 hPa / mb.  2. The pressure unit is inHg or hPa / mb.  3. Humidity: indoor and outdoor measurable range: 20% RH~95% RH.  4. Temperature: Indoor temperature measurement range: 32°F (0°C)~122°F (50°C).  5. Outdoor temperature measurement range: -4°F (-20°C)~140°F (60°C).  6. Minimum/maximum display of humidity and temperature (can be manually cleared).  7. Transmission distance: 60 meters.  8. Product size: about 20.5*13*3cm/8.07*5.12*1.18in.  9. Material: ABS.  10. Packing: color box.     Package included:  1 x weather forecast clock.  1 x power adapter.  1 x sensor.  1 x English manual