Usage Tips:1. Low voltage alarm speed mode: The speed limit is approximately 15 km/h. When the voltage s to 37V, the throttle must be ed 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 to manual mode. 3. Speed settings: 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: 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.