Features: High-quality materials: The car door door reminder equipped with smart sensors is made of high-quality materials, which is wear-resistant and durable, not easy to break, and can be used for a long time. Easy to install: The base of this car door door reminder is designed with seamless double-sided tape, which can be easily installed and removed. Intelligent high-definition voice prompts: When it sense that you are about to open the door, it will sound a prompt sound and light-up the breathing colorful lights to remind you to pay attention to the vehicles behind. Rechargeable design: This low-power car door door reminder has a reserved USB charging port, large-capacity battery, low power and long standby time. Stable and non-falling: The base is fixed with special double-sided tape for cars and has its own base design, making it easy to remove and charge. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: ABS Size: 5.9*2.7*1cm Input voltage: 5V Light response time: 2 minutes Applicable models: Common to all models Airs separation distance: about 5cm Note: Do not block the infrared device during installation. Make sure there is no obstruction within 5cm of the straight line distance from the infrared device to avoid infrared sensor failure. Package List: 1 x Car Door Opener Reminderwith Charging Cable