Retail price: 6050 yen Please only purchase if you understand that this is a used item. Used with a large shank mouthpiece. By practicing with a mouthpiece attached to the Buzz-R, you can feel a resistance similar to that of a real instrument, making it ideal for practice at home or on the go‼ The hole on the side reproduces the resistance of a musical instrument, allowing for effortless buzzing. Therefore, the Buzz-R is a suitable practice tool for warming up. Through daily practice with the Buzz-R, you will likely feel improvements in your range, stamina, flexibility, and the strength of the muscles used in playing‼ Ben van Dijk's comment: "The beauty of the Buzz-R's wood is remarkable, but what's great is that you can easily hold it and buzz comfortably with a mouthpiece. It's a tool that allows you to change the resistance by opening and closing the side hole, providing a comfortable blowing experience."