[Remote Control]: This stepper motor driver can control a two-phase four-wire stepper motor via a motor driver board or infrared remote control. [Driver Specifications]: The drive voltage is DC 4-6V, and it can be powered by USB, a 5V mobile phone charger, or a battery. The drive current is 300mA~500mA; exceeding this current may prevent the motor from starting. PCB dimensions are 52*36*10mm/2.05*1.42*0.39 inches. [Applicable Motors]: Two-phase four-wire/six-wire stepper motors (can drive 3V-24V stepper motors, depending on the motor torque). [Easy Operation]: The stepper motor remote driver can control the motor's forward and reverse rotation, with adjustable motor speeds from 0-9 levels and a digital display. Simply press the number keys on the remote control to quickly adjust the motor speed. Color: As Shown Material: plastic Package Contents: 1 * remote control 1 * motherboard 1 * connecting cable kit 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.