Enhance your car audio experience with this versatile Car Amplifier, crafted from durable aluminum alloy for long-lasting performance and reliable heat dissipation. Designed to deliver powerful sound output with 20W x 4 channels, this amplifier supports multiple input modes including USB, SD card, FM radio, and Bluetooth connectivity, allowing seamless switching between sources for ultimate convenience. Key Features: · Multi-Mode Input Switching: Easily toggle between USB, SD card, FM radio, and Bluetooth modes using the input mode switch button, providing flexible audio playback options to suit your preferences. · Bluetooth Connectivity: Quickly connect your smartphone or other Bluetooth-enabled devices by selecting "LDZS" from your Bluetooth menu, enabling wireless music streaming with ease. · USB & SD Card Playback: Simply insert a USB flash drive or SD card to automatically play your favorite MP3 files, with intuitive controls for previous track, next track, and pause/play functionality. · FM Radio Functionality: Switch to radio mode and use the play button to automatically scan and save available FM channels, giving you access to your preferred radio stations on the go. · Adjustable EQ Sound Effects: Customize your listening experience by freely switching between built-in sound effects, optimizing audio output to match your mood or music genre. · High-Quality Audio Performance: Featuring a frequency response range of 20Hz to 20kHz, low harmonic distortion (0.055% at 1kHz, 4W), and a high signal-to-noise ratio of over 86dB, this amplifier delivers clear, dynamic sound. · Precise Sound Control: Includes high pitch control (10kHz ±12dB) and power-on control (100Hz ±12dB) for fine-tuning audio output and enhancing sound clarity. · Compact and Durable Construction: Made with aluminum alloy material, ensuring excellent heat dissipation and durability for reliable operation in automotive environments. · Remote Control Compatibility: Supports remote control operation (remote battery CR1220 not included) for convenient wireless management of your audio settings. Specifications: · Material: Aluminum Alloy · Input Voltage: 12V · Output Power: 20W x 4 Channels · Frequency Response: 20Hz – 20kHz · Harmonic Distortion: 0.055% (1kHz, 4W) · Signal-to-Noise Ratio (SNR): >86dB · High Pitch Control: 10kHz ±12dB, 220mV, 47K · Power On Control: 100Hz ±12dB, 220mV, 47K · Card Reader: SD / USB · Supported Formats: MP3, Bluetooth · Remote Control Battery: 1 x CR1220 (not included) Package Includes: · 1 x Car Amplifier This Car Amplifier combines robust power output, versatile input options, and customizable sound settings in a compact, durable design, making it the perfect upgrade for your vehicle’s audio system. Enjoy high-fidelity sound with flexible connectivity and user-friendly controls wherever you drive.