1Waterproof and dustproof, suitable for all - weather competition. 2External programming interface, easy to connect to program card when setting ESC.(compatible with 2.3v programming card only) 3Proportional braking, 4 steps of maximum braking force adjustment, 8 steps of braking force adjustment, 49 steps from "soft" to accelerated (punch) adjustment 5Strong power, suitable for different types of car, tires and tracks. Features:Waterproof and dustproof, suitable for all - weather competition.External programming interface, easy to connect to program card when setting ESC.(compatible with 2.3v programming card only)Proportional braking, 4 steps of maximum braking force adjustment, 8 steps of braking force adjustment.9 steps from "soft" to accelerated (punch) adjustmentStrong power, suitable for different types of car, tires and tracks.Multiple protection: low voltage cut-off protection/overheat protection/signal lossProtection/motor lock protection.Single button (the "SET" button on ESC) sets the ESC and easily resets all parameters to factory default settings.Compatible with optional device - portable digital LED program card, especially convenient, suitable for outdoor use.Specifications:Condition: 100% Brand New Optional Type: 45A, 60A, 80A MODEL45A60A80ACont.Current/BurstCurrent45A/180A60A/320A80A/480AMotorType