1、[Professional Accordion] This accordion features 22 keys and 8 bass buttons, multiple sets of variable sound devices for adjustment, providing a rich and diverse musical experience. 2、[Reliable Materials] The accordion bellow is made of hard wearing material, and the reed is carefully handcrafted for stable intonation, ensuring reliable performance. 3、[Comfortable Button] The black and white non slip buttons provide a comfortable playing experience, sensitive and responsive, allows for precise control over the sound produced. 4、[Versatile Usage] This accordion is ideal for professional accordionists, suitable for both professional performances and formal examinations, delivers exceptional sound quality. 5、[Convenient and Portable] The accordion comes with a double shoulder backpack for easy storage and carrying, includes two straps for wearing the accordion while playing, providing convenience during performances.