1. using high-performance 32-bit intelligent chip,for crawler cars, trailers, DIY and other climbing off-road model cars.Having a small volume,Characteristics of high load current.More suitable for loading and does not occupy interior space. 2.This ESC comes pre installed with the latest AM32 firmware. It has been optimized for climbing type model cars, making your climbing car run very smoothly and quietly,but it is also suitable for various 1/10 scale or 1/24 or smaller model cars.Built in adjustable two sets of voltage BEC, 7.4V and 8.4V respectively,with a designed current of 5A load, Used for higher torque servo steering or adding rear lights to the sound group. 3.In addition, this ESC comes with low voltage, blocking protection and runaway protection, which can be changed at the ground station according to . The sine wave can be turned on to allow the motor to run smoothly at ultra-low speeds, making the climber more comfortable when climbing slowly in harsh environments. Power supply: 2-6S Lipo ESC load current: 50A Adjustable BEC:7.4V and 8.4V 5A load current(adjustable via toggle DIP switch on ESC) Electronic Switch:Supported. If you don't need a switch, you can short the switch pads on the ESC to turn on the power. Caveats: This ESC does not support waterproofing, you can do waterproofing by yourself (please dispose of waterproofing by yourself for maintenance), if you need to adjust the AM32 firmware parameters, you can use USBLink to connect to the computer using a Type-C cable and install the ground station program,and select the serial port used to link to the ground station. Colour:As Shown Material:PC+Aluminum Plastic Size: 30mmx17mm (not including capacitors) (ultra-small size) Package Contents: 1 x AM32 50A RC car ESC(Due to different product batches, the appearance , which does not affect the use) 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.