Feature: 1. ABS Material: The panel is made of ABS material, which is light, sturdy and durable, with fine workmanship and good toughness, providing better protection for the internal circuit and making it more durable. 2. Easy To Use: Built in smart chip, integrated gear switching, real time riding data at a glance, intimate backlight design, can see clearly during the day and night, making travel more convenient. 3. USB Charging Socket: Electric scooter bicycle panel built in USB charging socket. Can be used for mobile phone charging, output 5V 500MA. 4. Display Function: High definition LCD panel, accurate power display, speed and mileage display, cycling more convenient. 5. Waterproof: Electric bike LCD display uses waterproof design, no fear of rainy days, but not long time in the rain. Specification: Item Type: Electric Bike Display Product Material: ABS Weight: Approx. 254g / 9oz Suitable For Handlebar Installation: 22.2mm Diameter Handlebar Display Function: Speed Display, Power Gear Display, Power Indicator, Fault Prompt, Total Mileage, Single Mileage, Headlight Display. Package List: 1 x Panel1 x Instruction Manual 4 x Washer 3 x Screw 3 x Nut Note: The product is communication protocol No. 2. It must be used with the controller of communication protocol No. 2, otherwise, it is incompatible.