Feature:1. Lightweight, Mini size. Easy to install and operate2. It is specially tailored for 1/10 RC Crawler Off-road Car3. Built-in higher efficiency amplifier, lower power consumption and more power saving4. Equipped with 58 different sound effects from engine, brake, reverse car to danger alarm5. You can freely set what you want through software parameters like throttle response time, braking time, sound volume6. Any problem, please contact our store without hesitation. Honor to serve youSpecification:The Engine Simulated Sound Module is specially designed for1/10 RC Crawler Off-road CarFeatures:Lightweight, Mini size. Easy to install and operateIt is specially tailored for 1/10 RC Crawler Off-road CarBuilt-in higher efficiency amplifier, lower power consumption and more power saving Equipped with 58 different sound effects from engine, brake, reverse car to danger alarmYou can freely set what you want through software parameters like throttle response time, braking time, sound volume Any problem, please contact our store without hesitation. Honor to serve youSpecification:Power Amplifier: Input Voltage: 7-25V Max. current: 2AController Connecting Line: Input Voltage: 4.8-5.0V Max.Current: 0.5AAudio Output Power: Max.10WSound Box Size: 80 * 45 * 30mm Wire Length 20cm JST connectorPackage Information:Package Size: 12 * 6 * 4cm / 4.58 * 2.34 * 1.54inPackage Weight: 183gGift box PackagePackage List:1 * Engine Simulated Sound Box1 * Cable Set1 * ManualPackage List:1 * Engine Simulated Sound Box1 * Cable Set1 * Manual