In order to enhance customer experience, this power amplifier is equipped with high fidelity and low distortion characteristics, which can provide clearer and more shocking sound.Through bluetooth-compatible wireless connection and remote control, this power amplifier is very convenient to use.It is made of high quality aluminum alloy material, which is durable to use.The length of the power amplifier is 15.5cm, the width is 8.5cm, the height is 4.5cm.It is used for entertainment in car, home, home theater, etc.Item Name: Power AmplifierMaterial: Aluminum AlloyFeatures: HiFi, Digital Display, High StrengthModel Number: AK380Bluetooth Version: 5.0Input Voltage: DC 12VImpedance: 4-8Rated Power: 40W+40WMax Power: 400W+400WRated Frequency: 20-20kHzResolution47KDistortion Rate: 0.1Signal Noise Ratio: 90dBSound Channel: 2 Channel (2.0)Support: SD-Card, U Disk, AUX Input, MP3 Format Play, FM Stereo Radio, bluetooth-compatible Wireless ConnectionSize Details: 15.5cm x 8.5cm x 4.5cm/6.1 x 3.35 x 1.77 (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Power Amplifier1 x Remote Control1 x User Manual