Tuna Knobs are physical control knobs for your touchscreen. Tuna Knobs work on iPad, iPhone, Android and windows tables an are compatible with a great number of music and DJ apps. Tuna Knobs work like a stylus.
Tuna knobs stick to any touchscreen and let you control DJ and music making apps like you would with dedicated music hardware. They're designed to give you the tactile precision you need when making music, while giving you the versatility of mobile applications.
So Tuna Knobs stick to your touchscreen using a micro suction cup and translate a turning movement to a touch command. Simply stick them on your screen and you are ready to start twiddling away. Tuna Knobs use conductive rubber to translate turning a knobs into the right signal for your touchscreen, not dissimilar to how a stylus works.
Check out the supported apps.
Package of four Tuna Knobs and a travel case.