Lightweight, ergonomic design, easy to carry. LED Light. Wireless. With 16:1 electric contra-angle. It could store 9 programs. The parameter could be preset or modified according to the actual operation. P1-P6 for the endo treatment mode, P7 for the polishing mode, P8 for taking the broken file mode, P9 for the reciprocating mode. The equipment will auto-reverse and stop according to the torque and resistance. Uses soft starting and stopping to provide a convenient operation and to protect the file from breaking upon impact. Electric contra-angle is auto-clavable and has sterilization up to 135℃. The built-in recharging and high capacity battery not only makes the task of replacing the battery convenient, but also saves costs. Low battery alarm.