This Haicom car holder has been designed for large smartphones and can be fixed by simply slipping the plate onto the suction arm and attaching to your car windscreen. Please refer to the manual image to proceed with this easily Your mobile phone is always secure and available at hand even under hard environmental conditions. This universal holder has adjustable mounting bracket (height and width) and a release button for easy release of the device Technical Details ? Vibrationfree mounting system, thanks to a large contact surface of the holder ? Adjustable mounting bracket (height and width) / 3 rotatory angles ? With two ball joints horizontally and vertically adjustable swivel arm (up to 180º) ? Designed for larger smartphones as: iPhone 4/4S, HTC EVO 3D, Sensation/ XE/XL , Sensation 4G, Titan, Radar LG P920 Optimus 3D ,Motorola Droid Razr , Samsung Galaxy S, Galaxy S II, Galaxy S Plus, Galaxy Nexus, Galaxy S3 ? Height - adjustable from 105-128 mm /Width - adjustable from 58-77 mm