Specifications: - Built-in file system. - OLED color screen. - 16:1 contra angle. - Connect with apex locator. - Forward. - Reverse. - Reciprocating. - Automatic torque. - Speed range: 150-1000rpm. - Torque range: 0.6~4.0N.cm. - Battery: 3.7 V/1050mAh. - Weight ( main unit ): 96 Gr.