2 In 1 DesignCombined wireless phone charger and car phone mount for a safe hands-free experience. And Joyroom ZS219 phone holder car charger has two installation methods for the dashboard and air vent for you to choose. Super Stable Basephone mount for car wireless charger's base is equipped with a powerful suction cup and professional 3M adhesive (high temperature resistant). The base's suction cup has been tested thousands of times, it can absorb more than 20 pounds of objects without dropping. Even if passing speed bumps or driving on mountain roads, you dont need to worry about it falling. In addition, the bracket arm and clip are equipped with silicone pads for anti-slip and anti-vibration.