Power on/off function of power supply, automatically turns off after 5 minutes of inactivity. The four-bit smart power display accurately reflects the battery's state of charge to the remote. Features high, medium, and low gear settings with gear indicator and torque simulation, equipped with gear memory function that automatically restores the last used gear upon restart. Pulse function at 6 km/h with flashing light during impulse, assisting the rider during vehicle operation. Low voltage indication function: the low voltage indicator flashes when battery voltage is low. Utilizes five-line digital communication with self-adjusting parameter capabilities, allowing users to customize motor parameters, speed settings, and other parameters according to different models. The instrument offers excellent interchangeability, enabling direct replacement between units and seamless data parameter transfer. Compatible with 36V and 48V power supply systems. Upgraded components include waterproof connectors for improved weather resistance. Color: black. Material: composite material. Dimensions: 6 x 8 x 11.5 cm. Package includes: 1 x E-bike controller display. No other items included. Note: Lighting and display differences may cause slight variations in color between the image and actual product. Measurement tolerance: +/- 1-3 cm.