WPL V3 Diesel Version Upgraded Sound System All-in-one Electronics 1/16 RC Car Spare Parts Precise details: Description: Item Brand:WPL Item Name:Engine sound system Material:Plastic and electronic components Color:As the picture shown Product Size: Remote Controller:190x75x120mm Circuit Board:49X28x9.8mm Horn:28X28X25mm Packaging Weight:About 223g Compatible:WPL 1/16 rc car,should have upgraded 370 motor and 7.4v battery All-in-one Functions: Receiver Buit in ESC(14A) Servo Control Winch Control Gear Shift Sound Module Light Control Car 1/Car 2 Switch Low voltage protection Support 2-3 S PWM output for External ESC Auto Drag Brake at Low Gear Diesel Sound Low Voltage Protection: 2S-6V 3s-11V WPL V3 Diesel Version Upgraded Sound System All-in-one Electronics 1/16 RC Car Spare Parts Specification: ESC max supported current:14A(under-load) Requires two AA batteries for remote controller(not included) What's new in V3 vs V2: PWM output for external ESC Added Auto Drag brake at low gear(manual braking at high gear) Impoved/Fixed: Doubled the ESC amp output Triple radio signal Even better throttle modulation Gear shift now starts at high gear Tips: Not recommended to use on 130/180 size motor without 104 capacitor,cause interference to sound.370 motor is fine Not backward compatible with V2 sound system The set doesn't come with any plug/battery connector,you may use your own that fits Doesn't work with the yellow color 6v 700mah Ni-cd battery If you're an single speed gear,gear shift button becomes the on/off for auto drag brake Actual receiver may look a little different but function is the same Recommended to use on WPL's 370 motor,the 130/180 tend to have interference issue unless 104 caps added Package Included: 1X Remote Controller 1X Cicuit Board 1X Horn 1X Manual 1X Sticker Sheet 5X Resistances