The Tablet is delivered mE are visually 1A, but so really not usable. Why Aiptek not adjusted the pins, is beyond me. The bundled software does not really help here. If you build the pen completely apart (small screw at the positive terminal of the battery compartment to remove), you reach a rotary potentiometer which it is set. To see the effect of twisting immediately, the battery needs re-inserted and the rear cover are re-closed. The front part of the cover remains open. Now you twist gently (using a small screwdriver) to Poti a little and be amazed! Will it be worse turn in the other direction. ! The pen should respond liquid when it is performed approximately 1 cm above the tablet. Now battery out and assemble the front cover (Caution to the rocker who love revolves around times) and screw tight. Insert battery and pin completely assembled. Now you have a 1A functioning tray with it is really fun to work. PS. The current Linux kernel supports the pin without installing :-)