Suitable for mobile phones，smart phones， PDA ， MP3， MP4 Devise Clamp arms to adjust for universal fitting for desired devices Adjust holder horizontally or vertically Eesy to stall Inculde 2 USB ports Dual 2 USB Car Charger Cradle Mount Holder Stand for iPhone Samsung MP3 MP4 GPS Dual 2 USB Car Charger Cradle Mount Holder Stand for iPhone/Samsung/ MP3/MP4/GPS/PDA   Features: 1.Suitable for mobile phones，smart phones， PDA ， MP3， MP4 Devise; 2.Clamp arms to adjust for universal fitting for desired devices; 3.Adjust holder horizontally or vertically; 4.Eesy to stall; 5.Inculde 2 USB ports; 6.Maximun output:2.1A; 7.Material : ABS / EVA / PVC aluminum elbow. Package: 1 x Dual USB Car charger Phone Mount Holder Instruction: Lock the mount to the arm. Plugs into a car's cigarette lighter socket. Press a button beside the mount ， to ajust the width of the mount， then put your phone on it . Then ajust the arm to best angle and you can view movie on the phone while it was get charging