Features: 100% brand new and high quality Contact us if you have questions，we will try our best to serve for you. Function: Replace the damaged parts, make the skate more convenient. Left and right direction display,speed display, temperature display, gear display, braking status display, makes you enjoy skating. Motor Failure Display, Relay Failure Display, Controller Failure Display, Timely Reminder, Make You More Safe and Reliable. Startup shows total mileage, time and mileage are displayed after 3 seconds. Package Includes: Depending on your choice, you can see the picture. Specifications: Material: ABS Voltage: 36V Minimum Voltage: 29V Maximum Current: 15a Brake Level: EABS Screen Body Size: x 45x8mm / X inches (without line) Screen Net Weight: 68g Controller Body Size: 8 x 4.3cm / 3.2 x1.7in Controller Length : 40.5cm / 16.0in Controller Net Weight: 160g / 5.6oz Package Size: 18 x 11 x 5cm / 7.1 x 4.3 x 2.0in Package Weight: 280/9 9oz Package note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Contact us if you have questions，we will try our best to serve for you. Function: Replace the damaged parts, make the skate more convenient. Left and right direction display,speed display, temperature display, gear display, braking status display, makes you enjoy skating. Motor Failure Display, Relay Failure Display, Controller Failure Display, Timely Reminder, Make You More Safe and Reliable. Startup shows total mileage, time and mileage are displayed after 3 seconds.