Automatic code matching at power-on, no string coding, one-to-one remote control. The remote control distance is 500 meters. High power, each motor drive can output a maximum of 5A current. The left and right handles control the left and right motors respectively, and there are motor power fine adjustment buttons. There are nesting motor control and LED control buttons. Battery for receiver board: 7.4V lithium battery pack, 7.2V lithium battery pack Motor for receiver board:the maximum output current of each path of the receiving board motor driver is about 5A, which can drive small and medium-sized motors with load currents within 4A. Battery for remote controller: 4pcs AA battery (Not included) Controlling distance:500 meters Remote control power consumption:25mA Color: As Shown Material: Plastic + PCB Package Contents: 1 set x TX02-RX02 remote control with control board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.