1. Improved projection function: Display time and temperature at the same time. Adjustable projection direction and angle, easy to read all information from all angles. The projection function remains unchanged when connected to a power source and can be controlled by the on and off buttons.2. USB Charging Function and Snooze Function: When the projection alarm clock is connected to the power supply, the USB port on the left side can charge your mobile phone or iPad. When the alarm goes off, touch the "Light Up/Snooze" button to activate the snooze function. 5 minutes later the alarm will go off again. Then press any button to interrupt the snooze function.3. EASY TO USE AND PORTABLE】: The alarm clock has two working modes: plug it in when you are at home and install 2 AAA batteries (not included) when you are out. And its size and power consumption are small, easy to carry and use.4. Backlight: After inserting the battery, touch the top of the watch to turn on the backlight. Through the USB cable, the product backlight has four brightness modes: high/medium/low/off. Each time you touch to change the mode. It can also stay on all the time.5.Package Contents 1 x Projection Alarm Clock 1 x USB Data Cable 1 x English User's Manual