Indoor/Outdoor Time and Temperature and Weather Forecast: Time and temperature as perpetual calendar up to 2099 and time in any 12/24 hour format, C/F conversion, alarm, weather forecast function which has 6 weather forecast symbols and 3 barometric trend symbols, predicts the weather for the next 12 hours (indoor/outdoor temperature is displayed circularly every 5 seconds). 8 Interchangeable Backlight Colors: The screen color can be set according to your mood. 8 interchangeable backlight colors (white, red, orange, yellow, green, cyan, blue, purple) and the colors can quickly flow or be fixed on one color. The projection clock offers 3 levels of brightness to adjust. 60 Meters Transmission Range: 90~180 rotation angles and 1~3m long projection distance for clear display, dual alarms with snooze function, which means it has two alarms with independent switches, snooze snooze minute function). Please note 60m transmission distance in open space. 120 Rotating Projection: The projection clock has projection function and about 120 degrees of free rotation. (Display time, temperature) Users can adjust it to the angle you prefer. Indoor temperature detection: -9.9C to +50C (14F to 122F). Outdoor temperature detection: -40C~+70C (-40F~158F). Two Power Supply Modes: Using AC adapter or two AAA batteries (batteries not included). USB Charger: With a 5V 1A USB output port on the side to enable charging of handheld mobile devices.