1. Low voltage alarm speed mode: The speed limit is approximately 15 km/h. When the voltage returns to 37V, the throttle must be returned to the initial position to release the low voltage protection and restore normal operation. 2. Constant speed cruise: After maintaining a steady speed for about 6 seconds, cruise control activates automatically. Once engaged, the throttle can be released. Pressing the brake or operating the throttle again will disengage cruise control and return to manual mode. 3. Speed settings: Low speed is 10±2 km/h; middle speed is 20 km/h; high speed is 30 km/h (maximum). Note: Load may affect actual speed. 4. Automatic shutdown: Device automatically powers off after 10 minutes of inactivity. 5. Compatible with: Electric motorcycles, e-bikes, scooters, electric bicycles, and balance skateboards. 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 Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.