Features:
1) The chain drive track with novel design runs smoothly and soundlessly 
2) Power saving, it consumes only 4w in the static status 
3) Voltage of DC 24V, little heat created, can be used continually 
4) It will automatically rebound 15cm in case of block 
5) The rolling technology is applied to the remote control, and the probability 
    of the same code is calculated as one 10 billion 
6) Safer with infrared secure protection is available 
7) The valid remote control distance is within 30m 
8) The storage battery device is available, which can assure its running in 
    order 
9) Soft start-up, soft stop