GameTACT Android Touchscreen Game Controller Analog Stick for Android Smartphones - Works with Samsung Galaxy Tab Pro / Tab S / Tab 4 , Dell Venue 8 7000 , Google Nexus 9 / 7 , ASUS MeMO Pad 7 , NVIDIA Shield Tablet , and Many More! Reusable adhesive design offers quick and easy installation and removal. Works with Acer Predator 8 , NVIDIA Shield , Microsoft Surface Pro 4 and More Increased control and performance compared to your phone's virtual analog stick Can be used with thousands of mobile games that utilize a virtual controller / analog stick No additional software or batteries required Easily stored when not in use; No bigger than the size of a quarter