Features1USB Charging: There is an unobvious USB port on the back, which can be output to charge the phone. 2Applicable Model: Suitable for M4 electric scooters, bringing you a more comfortable riding experience. 3Display Function: Easily understand the basic status of the electric scooter, including speed, gear, power, mode, indicator light, etc. 4Easy to Install and Use: Note that the 6 pin waterproof connector can be connected to the controller to achieve the display function. 5 Workmanship: Made of ABS material, more sturdy, ensure good toughness and waterproof performance, and better protection.SpecificationItem Type: TF100DisplayColor: As Pictures ShownMaterial: ABSWeight: Approx.126g/4.4ozConnector Type: 6 Pin Waterproof ConnectorApplicable Handlebar: Diameter: Approx. 22.2mm/0.9inSize: Approx. 125x112mm/4.9x4.4in, Cable Length: Approx. 300mm/11.8in(Manual measurement allows for error)Package List1 x TF100Display