Handsfree & audio streaming car kit connecting each time you enter your vehicle is as simple as a touch of the power button Dimension: 2.59H x 0.76W x 0.78D (main unit), Diameter: 0.81 dia (car charger) Compatibility: iPhone 6S Plus/6S/6 Plus/6/5C/5S/4S, Samsung Galaxy S6/S6 Edge/S5/S4/S3, iPad Pro, iPad Air and iPod touch