Keys: Humanity key design, two scan keys, two accumulation keys;The intelligent keys on the left and right side, convenient for left or right handusing.

Screen display: LCD display Battery capacity indication, charge indication;Low power alarm indication; Chinese and English operation interface switch; Different indication direction if press different left or right key;

Battery: Use high capacity Li-ion battery Use lower power consumption charge management chip, charge electric current limitis 320MA Provide universal charge to charge Customer also can choose PC USB connection interface to charge;

Power : switch on and off Power On by pressing any key;  Power auto off after operation stop for 30 seconds