This is a newly produced pre-main amplifier with a Bluetooth 5.0 compatible MP3 digital decoder board and a memory card audio recorder function. It has a retro wood-grain body as shown in the photo, and its design matches any environment. It comes with a remote control and a DC12V power supply (as shown in photo 13). The remote control is available in silver or black. Below is the product description from the parts manufacturer: Power Amplifier Board TPA3110 XH-A232 30W+30W 2.0 Channel Digital Stereo Audio Power Amplifier Board DC 8-26V Size: 53 x 45 x 14mm. Chip: TPA3110. Condition: XH-A232. Application: Computer Supply Voltage: DC8V-26V. Dissipated Power: 30W+30W. Size: 53 x 45 x 14mm. Channels: 2 (2.0). Output Impedance: 4-8ohm. Signal-to-Noise Ratio: 100db. Tone Control Preamp: This preamp allows easy control of treble, mid-range, bass, and overall volume. Wide Frequency Range: Enables a wide frequency range of 20-20KHz, and the tone control board is also easy to adjust. Easy to Use: Supports DC 12-25V and AC 9-18V input, making installation easy. Music Playback: This board supports file playback. While playing from USB or a memory card, press the up or down button twice to select a folder, and the song number will be displayed on the screen when playing a song. Connectivity: This Bluetooth-compatible module can be connected directly to speakers and supports amplification and decoding functions. Formats: The decoder supports MP3, WMA, WAV, APE, and FLAC music formats, and features MP3, USB, memory card, line-in, Bluetooth compatibility, and remote control functions. The EQ button allows you to adjust to your preferred sound. Please provide your own batteries for the remote control.