1. Power on/off function of power supply; it will turn off automatically after 5 minutes of inactivity. 2. Four-bit smart power display accurately reflects battery charge level to ensure reliable remote operation. 3. High, medium, and low gear switch with gear indicator and torque simulation; includes gear memory function that automatically restores the last gear setting upon restart. 4. Pulse function at 6 km/h with flashing light during impulse, assisting rider control during vehicle operation. 5. Low voltage indication function: the low voltage indicator flashes when battery voltage is low. Supports five-line digital communication with self-adjusting parameter functions, allowing users to customize motor parameters, speed settings, and other values according to different models. The instrument offers excellent interchangeability—different units can be swapped directly and transfer data parameters seamlessly. Compatible with power supply voltages of 24V, 36V, and 48V. Size: 6 x 8 x 11.5 cm Material: Mixed material Color: Black Package Contents: 1 x E-bike Controller Display Note: Light and display differences may cause slight color variation between the image and actual item. Measurement error allowance: +/- 1–3 cm.