Special, hardened glass surface for a precise pen input, ERT-Sensor (only reacts to the pen). Life expectancy of about 30 million signatures. Large 12.5 cm (5") full-colour LCD. Batteryless special pen with changeable tip. SlideShow with up to 10 images, 1.024 pressure levels, 500 Hz sampling rate. Highest security through unique security features and RSA encryption.