VEIKK Pen Tab, VK640 Pen Tablet, 6 x 4 Inches, 8192 Grade No Charging Required, Pen, 0.08 inch (2 mm) Thick, Ultra-Thin Shortcut Keys, Equipped with Tilt Detection, Ideal for Beginners and OSU, Compatible with Android 6.later Devices, Smartphones, OTG Connection Terminal