Description: To improve the customer experience, this power amplifier is equipped with high fidelity and low distortion, 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 makes it 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 Amplifier Material: Aluminum Alloy Features: HiFi, Digital Display, High Strength Model Number: AK380 Bluetooth Version: 5.0 Input Voltage: DC 12V Impedance: 4-8Ω Rated Power: 40W+40W Max Power: 400W+400W Rated Frequency: 20-20kHz Resolution: 47K Distortion Rate: 0.1 Signal to Noise Ratio: 90dB Audio Channel: 2 Channels (2.0) Support: SD Card, U Disk, AUX Input, MP3 Format Playback, FM Stereo Radio, Bluetooth-compatible Wireless Connection Size 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 item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Power Amplifier 1 x Remote Control 1 x User Manual