QUICK RELEASE BUTTON??Press button on back of unit to slide open and then take out mobile phone. Press the arms on both side to clamp mobile phone again?? simple of operation?? save time and power.</br>??DOUBLE SECURITY??The clamp also comes with 2 support feet to stabilize your device--- three direction to clamp mobile phone?? 360 degree rotation. And soft rubber layer to protect your device from scratches?? the outward appearance fashion natural.</br>??UNIVERSAL FIT??Designed with one-button released function?? the width of holder can be flexibly adjusted to hold phones of size from 4.0"able for iPhone 7/7 plus Galaxy S7/S6 Google Nexus 5/4 HTC and GPS device.</br>EASY AND SMARTThere are sponge cushions on the car phone mount for secure and wobble-free fit for your cell phone. Foldable holding feet allow hassle-free charging for your cell phone.</br>360 DEGREES ROTATIONFully adjustable with 360 degree rotation for viewing your device at the right position. Change your perspective with a simple spin.</br></br>Product Description</br></br><b>NOPNOG</b> is an American famous brand focusing on phone mounts. Our mission is<b> Safety Driving  Smarter Life. </b> <br/><br/> <b>Why Should You Choose Us? </b><br/><br/> We have thoroughly studied nearly all car phone holders you can buy on US market carefully looked through all users' reviews and complaints and developed our own <b>NOPNOG</b> Car Accessories <b>Extra-Thought-Out Universal Super-Handy Car Mount! </b><br/><br/> <b>Cool Features: </b><br/> <b>Broad Compatibility</b><br/> Its adjustable supports all size cell phones with or without Cases. <br/> <b>Double Security</b><br/> Angled bottom and two adjusting arms allow your phone stay steady while driving. Silicone grip will prevent your phone and your air vent from scratching. <br/> <b>Optimal Viewing</b><br/> 360 degree rotation ball joint adapter gives you a perfect viewing angle. Clockwise turn the adjuster to tighten or loose makes you enjoy the perfect view while prevent your phone