Product selling points: 1. Using high quality PCB + ABS shell material, quality is guaranteed, greatly improving the service life of the product 2. On-board knob/switch, 360-degree mechanical feel, speed control start/stop one switch 3. This is an intelligent speed controller, remote control speed and positive and negative rotation can be switched at , the shipment configuration remote control [remote control built-in button batteries] 4.0-999 three-digit digital display scale percentage table, simulation tachometer dual-use 5. The product is soft start and soft stop and comes with voltage over-limit protection, current over-limit protection, and more convenient to use! Product parameters: Input voltage: DC 6-55V Maximum current: 15A Display mode: liquid crystal digital display Forward and reverse: bidirectional Speed control mode: key plus knob Overload protection: Yes Support load: DC brush motor Wireless remote control: Yes Installation mode: embedded Set the number of functions: 11 Wiring Type: Grid terminal Product size: 77mm x 57mm+38mm Opening size: 72mm x 52mm Color: as shown Material: Plastic (Due to different product batches, the appearance , which does not affect the use) Package Contents: 1 * Speed controller 1 * Remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.