Power on/off function automatically turns off after 5 minutes of inactivity. Four-bit smart power display accurately shows battery charge status to the remote. Features high, medium, and low gear settings with gear indicator and torque assist simulation, including gear memory that restores the last used setting upon restart. Pulse function activates at 6 km/h with flashing light during impulse to assist rider operation. Low voltage indication flashes when battery voltage is low. Equipped with five-line digital communication for automatic parameter adjustment, allowing customization of motor parameters, speed settings, and other settings based on different models. Instrument offers excellent interchangeability—units can be swapped directly and retain data parameters. Compatible with 36V and 48V power supply systems. Upgraded components include waterproof connectors designed to withstand changing weather conditions. Color: black. Material: composite material. Dimensions: 6 x 8 x 11.5 cm. Package includes: 1 x E-bike controller display. Only listed item included; other products not included. Note: Lighting and display differences may cause slight color variations between image and actual item. Measurement error allowance: +/- 1-3 cm.