Feature:1. Fitment: The extension cable is a replacement for Bafang P850C display with 4 pin, please check your bike model before ordering.2. Waterproof: The cable and the switch are made of high quality PVC material, which is waterproof ensures durability and longevity.3. Function: The extension cord comes with a control button that makes it easier to control the electric bike's motor dashboard and enhance your driving experience.4. Precision Craft: This bicycle display cable is manufactured in strict accordance with standard requirements, high performance, long service life.5. Portable: This electric bicycle display is small size and lightweight, won't burden your electric bike, takes up a small space, easy to carry and store.Specification:Item Type: Electric Bicycle Switch Extension CableMaterial: PVCWaterproof Rating: IP65.Application:Fits for Bafang P850C displayPackage List:1 x Display Control Switch