Product Information: Color: Black Dimensions: 13.5 x 4 x 8.5 inches Weight: 250g Display Type: Numeric, LED Dome Material: Plastic Power Supply: 2 x AAA batteries or DC 5.0V USB power Applicable Locations: Living room, bedroom, office, kitchen, bathroom, public areas Special Features: Thermometer, perpetual calendar, alarm, calendar display, 24-hour format, humidity measurement, weekday display Package Contents: 1 x Projection Clock, 1 x USB power cable, 1 x User manual All-in-one Functions: Radio-controlled projection alarm clock with indoor temperature and humidity display; time and temperature projection with on/off button; USB charging port; dual alarms with snooze function. Projection Function: All display information is easily readable from any angle. Projects time and temperature simultaneously. Press the button to project for 8 seconds when using battery power, or keep projection active when powered via USB. Use the on/off button to control projection as needed. Adjustable projection angle allows easy selection of the optimal viewing angle. Automatic Time Setting, Indoor Temperature and Humidity Display: Atomic clock automatically sets the correct time (12/24 hour format). Indoor temperature and humidity levels are clearly displayed. Temperature can be shown in either °C or °F. These additional features help you make daily dressing decisions based on room conditions. USB Charging Port, Dual Alarm with Snooze Function: Set two separate alarms for different purposes. Press the top button to activate snooze for an extra five minutes of sleep. The built-in USB output port allows convenient charging of electronic devices.