Expandable arms can hold most tablets that are 7-inches to 12.1-inches in size Compact bracket design ensures that buttons and ports can be accessed easily Ball joint global positioning system provides an adjustable viewing angle and free rotation between portrait and landscape orientations Adjustable microphone stand clamp can be mounted on a vertical pole or horizontal boom with a diameter of up to 1.2-inches (30mm) Two rubber gripping points and rubber padded base supports your tablet securely without damaging its surface Comes with iKlip Stage, a page turning and music score management app Compatible with all iPad generations, Samsung Tab, Galaxy Nexus, Kindle Fire, and most other tablet models