SPEC RSP-101 Real Sound Processor Audio Accessory Used item. Body only. No pets, non-smoking environment. We would appreciate it if those who understand used items would purchase. Music becomes more enjoyable! Just by connecting it to your speakers, the potential of your audio products can be further enhanced, allowing you to enjoy music more, such as: "Improved sound resolution," "Increased transparency," "More detailed sound," "More delicate sound," "Clearer sound localization," "Enhanced depth," "More lifelike sound," "Rich sound resonance," and "Improved sound projection." *Effects vary depending on the audio equipment and the type of music. Please note that there are individual differences in the perceived effects.