No. 1 mount brand. Includes optional vent base. Phone weight triggers arms to close. Works with: Smartphones. Apple. Samsung. Google. GPS devices and more. What's in the box: Gravitydrop mount head. Window/dash mount base. Vent mount base. Mounting your phone couldn't be simpler. Just place it on the bottom ledge of the mount and its weight triggers the arms to close and securely grip your phone. Two interchangeable base options are included. No tools needed! The T-Notch on the back of the mouth lets you quickly and easily change bases. The StickGrip suction-cup window/dash mount base holds securely, yet removes easily for re-positioning. The vent mouth base fits most vents and transfers easily from car to car. Adjustable arms securely hold devices up to 3.5 inches wide. No. 1 mount brand. Scosche is the No. 1 mount brand in the US & Canada. (Source: The NPD Group, Inc, retails tracking service, US & Canada, mobile holders/stands, excluding mobile holder type: Mobile grip/stand, dollars & units, Jan, 2016- Dec 2019). Hands-free. CE listed. FCC listed. scosche.com. Find instructions, warranty information and register your product online at scosche.com. customerservice(a)scosche.com. 800-363-4490 x1. Recycle this package. Please completely separate the plastic from the paper before recycling. Designed & Engineered in California, USA by Scosche. Manufactured in China.