1. Projection time: Project the time onto the wall or ceiling so the complete time can always be seen. The view is very clear, but it will not disturb you when you . The recommended projection distance on the ceiling or wall is 3.3~9.8 feet (1~5 m) 2. Rotatable: 180-degree rotating projection, you can check the time without flipping 3. Date, alarm, time display: automatically display the time/date, the alarm setting can be restored after failure 4. Snooze function: set separate alarms for different purposes. If you want to for another minutes, press the button 5. Color display: interesting colors of backlight 6. Temperature and humidity display: the highest and lowest temperature and humidity records will be displayed 7. display: It has a display, which is especially suitable for children and the elderly to read Specification: Display mode: LED Projection distance: 1-5M LED backlight: support Humidity display: 20%RH to 99%RH Temperature display: 0 degreeto 50 degree/ 32 degree to 122 degree supply: 2xAAA batteries (not included) Colour:white Material:ABS Size:16 x 12 x 6cm Package Contents: 1 * projection 1 * usb cable Note: 1. With the battery, the projection time and screen will automatically disappear for a few seconds, press the switch again for a few seconds and then disappear 2. When plugged in, the screen and projection will always be on and cannot be turned off 3. The battery and cannot be used at the time, otherwise the will be damaged 4. Try not to high-capacity batteries, high-capacity batteries will discomfort to the due to high voltage 5. Compared with professional thermometers, there are errors. The weather fore is for reference only. 6. The time needs to be reset after the is off Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.