Power on/off function of power supply; it will turn off automatically after 5 minutes of inactivity. The four-bit smart power display accurately reflects the battery charge level to the remote. High, medium, and low gear settings with gear switch and gear indicator, featuring torque assist simulation and gear memory function that automatically restores the previous gear state upon restart. Pulse function at 6 km/h with flashing light during impulse, assisting the rider while driving. Low voltage indication function: the low voltage indicator flashes when battery voltage is low. Equipped with five-line digital communication for automatic parameter adjustment, allowing users to customize motor parameters, speed settings, and other parameters according to different models. The instrument offers good interchangeability, enabling direct exchange between different units and copying of data parameters. Power supply voltage compatible with 36V and 48V 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 contents: 1 x eBike controller display. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.