Attention buyers authentic energy pal products are sold exclusively by the one-store. Products Purchased from 3th party sellers will not be covered by our warranty. Specifications: 2 Built-in USB charging ports (max 2.1A) 1 power outlet length of gooseneck flexible rod-3 inches length of gooseneck to top of clamp-5 inches please note: iPhone lightning cable is not included, as well as android charger cables are not included. Compatibility: 360 Degree rotating flexible gooseneck rotating clamp-adjustable holder to view your device at any angle or orientation while driving. Dual USB charging ports-charge and connect up to 2 compatible USB electronic devices (both at the same time). Power outlet-this feature provides an additional option for you to connect other compatible electronic devices such as connecting your own FM transmitter. Hc84k is best suitable with bigger phones: iPhone 6, iPhone 6+, Samsung galaxy s6, s5. If you have smaller phone, Expo iPhone 4 or iPhone 5, Samsung galaxy s2 or s3- please look at hc85n for a better fit. All iPhone models-iPhone 6, 6 plus, 5S, 5c, 5, Samsung galaxy models-s5, s4, s3, s2, note 3, note 2 android smartphones.