Description: brand new and high quality Features: Easy to install, high quality. This scooter Bluetooth-compatible dashboard can fit perfectly,a direct replacement for Nineboot ES1 ES2 ES3 ES4 electric scooter control panel. Easy to install,We upgraded the board and it is already activated. You can install it directly It can control speed control,bluetooth-compatible module,component coordination and security monitoring,is a centralized control board. It is designed with external battery connector,you can use it to replace the worn or damaged control board. Made of metal material,the housing can well protect the inner parts,making it can last for a long for time. Shock absorber bars:adding shock absorption bars can prevent wire connector from falling off due to vibration. Specification: Type: Motherboard Controller Material: Aluminum, circuit board Applications: Ninebot for Segway ES1/ES2/ES3/ES4 Scooter Features: Motherboard controller, easy to install, high quality, scooter accessories, multi-model Dimension: app.15x5x5cm/5.91x1.97x1.97in Color: Silver Blue Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pc x Motherboard Controller