Item Type: Dual Drive Controller with Display Product Material: Aluminum, PCB, Plastic Weight: Approx. 535g / 18.9oz1Heat Dissipation Controller Shell: The controller shell is made of metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit, thus avoiding thermal overload. 2Waterproof Dispaly: The display is light and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 3Stable and Sensitive: 24V 36V 48V 350W brushless motor controller can provide stable speed and sensitive control of braking and direction changes. 4Clear Display: Instant display data panel has cool and clear display. Power and speed can be clearly seen on the screen. 5Applicable Model: 24V 36V 48V 350W electric motor controller with display is suitable for electric bicycle, electric bike, electric scooter. 1 x Controller&nbsp 1 x Display 2 x Manual