คีย์บอร์ด YAMAHA รุ่น PSR-160 สภาพใหม่ 90% The PSR-170 is a 61-key keyboard with over 100 voices, including the industry's best Portable Grand™ piano voice. Learn to play with the built-in Yamaha Education Suite. A DJ feature with cool sounds and built-in loops provides a cutting-edge sound. Built-in speakers make it truly portable. Educational options and low price make the PSR-170 ideal for those learning to play.