The Joyroom Qi Wireless Car Mount eliminates all inconveniences when using smartphones in the car. Simply place your Qi-enabled smartphone on the Qi Wireless Car Mount connected via USB cable to start the charging process. If you want to secure your smartphone in the mount, just press the button on the side of the mount, and the two arms will open automatically. Once you place your smartphone in the mount, the arms will close automatically, securing your phone. The smartphone is also automatically aligned electrically so that the dual charging coil is positioned exactly right, achieving maximum charging efficiency. The Joyroom car mount is attached to the dashboard using a suction cup holder. The durable suction cup features a self-adhesive gel pad and can be effortlessly attached to any glass or other surfaces, such as the dashboard. Suitable for all smartphones from 4.5 to 7.0 inches.