Positive Grid wireless system for guitar and bass. Purchased new about a month ago (new price: 18,700 yen). Operation confirmed. Listed until the 29th. Used a few times at home. No noticeable scratches or stains! Includes all accessories: a charging cable that can charge two devices simultaneously, and a Positive Grid pick that came with the new purchase! The condition is almost like new. Can be connected to amps other than Spark Go! Spark Link Wireless Guitar System Wireless Shield