The "Mobile Airbag" system is a patented technology invented by Amazon in the United States. This airbag system protects the phone from damage when dropped. The principle is to build motion sensing technology into smartphones. When the phone falls, it senses the fall and ejects the micro airbag built into the phone before it hits the ground, or changes the trajectory of the device by jetting airflow. The patent could provide security for cell phones, e-readers, tablets, cameras and more.