Feature: 1. The black and white non?slip round button feels comfortable and sensitive, and multiple sets of voice changers are available for adjustment. 2. 22 key 8 bass professional accordion, very suitable for professionals to play and test grades, can also be used for beginners to practice. 3. Made of high?quality ABS, wood, metal and other materials, hand?polished, more stable intonation. 4. Comes with an accordion backpack for storing accordion and easy to carry, and two straps make easier to hold while playing. 5. This accordion is simple and easy to play, which helps cultivate musical talent and improve sense of rhythm. Specification: Item Type: Accordian Material: Engineering ABS + stainless steel + solid wood + reed + celluloid Size: Approx. 26.5 x 29.5cm / 10.4 x 11.6in . Package List: 1 x Accordian2 x Strap1 x Accordion Bag