Power on/off function with automatic shutdown 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, plus 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 warning indicator flashes when battery voltage is low. Utilizes five-line digital communication for automatic parameter adjustment, allowing users to customize motor settings, speed parameters, and other settings based on different models. The instrument offers excellent interchangeability—different units can directly exchange and copy data parameters. 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. Note: Lighting and display differences may cause slight color variation between the image and actual item. Measurement tolerance: +/- 1–3 cm.