1.UBEC: 5V 1A 2.Input:3.7V-13V 3.Signal:1ms-2ms 4.Motor current: 13A max Mode Introduction:A.Tank Mode:Channel S1 controls the common speed of the left and right motors, while channel S2 controls their differential speed. B. Mode:This is equivalent to two bidirectional ESCs, where channel S1 governs the left motor and channel S2 governs the right motor C.Airplane Mode:Channel S1 controls the common speed of the left and right motors, while channel S2 controls their differential speed.However, the motor cannot run in reverse. Battery Selection Guide: A. 1S Application: UBEC has no output B. 2S Application: Recommended application.Optimal performance and compatibility. C. 3S Application (Requires Precautions Against Overvoltage): To safely use 3S batteries, implement the following measures: 1.Use thicker gauge power wires. Optimally, use tightly twisted pairs. Keep wire length under 20cm whenever possible. 2.Use high C-rate RC model batteries.Avoid using low-performance children's toy car batteries. Warning:When using the UBEC to power the receiver, an external power source must not be connected to the receiver simultaneously.Failure to observe this may cause damage. Color: As Shown Material: PC Package Contents: 1 x Two-way Bidirectional Brushed Electronic Regulator 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.