I will refer to the descriptions of past sellers. ◆Product Description◆ - Model: RW-800 - Functions: CD playback, recording - Digital-to-Analog Conversion: 24-bit - Connection Terminals: MIC input, headphone output - Color: Silver - Remote control and instruction manual are missing. This is the professional CD recording and playback machine "RW-800". It can record to CD-R/CD-RW discs, making it an ideal model for music production, dubbing, and professional use. It supports analog/RCA and digital input/output, allowing connection to a wide range of devices. Operation has been confirmed. I connected it to speakers and an amplifier and confirmed the sound output. Both recording and playback work without any problems.