1. Low voltage alarm speed mode: The speed limit is about 15 km/h. When the power returns to 37V, the throttle must return to the initial position to release the low voltage and resume normal operation. 2. Constant speed cruise: After maintaining a stable speed for approximately 6 seconds, cruise control activates automatically. Once cruise is set, the throttle can be released. Press the brake or operate the throttle again to disengage cruise control and return to manual mode. 3. Speed: Low speed is 102 km/h; middle speed is 20 km/h; high speed is 30 km/h (maximum). Note: Load may affect actual speed. 4. Automatic shutdown: Automatically powers off after 10 minutes of inactivity. 5. Fit For: Electric motorcycle, e-bike, scooter, electric bicycle, balance skateboard. Specifications: Product Name: Electric Scooter Controller Kit Voltage: DC 36V Rated Power: 350W Color: As shown Material: Metal + Plastic Package Contents: 1 x Controller 1 x Bluetooth board 1 x Accelerator 1 x Extension cable 1 x Face cover 1 x Brake handle Only the above package content is included; other items are not included. Note: Lighting reflections and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.