To quickly build suitable for acoustic guitar a learning tool for beginners and guitarists with arthritis Portable guitar chord helper and trainer <p>【 Good News for Beginners 】No more sore fingers, even people with arthritis can play guitar! The patented mute button design reduces pressure pain by 90%. Beginners without any experience no longer need to grit their teeth, and people with arthritis can rediscover their love of music and enjoy playing with ease!</p> <p>【No Basic Knowledge Required】Play your first pop song in 15 minutes! Preset C/G/Am and 9 other basic chords, switch chords smoothly with the touch of a button, play "Happy Birthday" and "Twinkle Twinkle Little Star" with ease, and experience a sense of accomplishment from the very first day!</p> <p>【Perfect Gift】Surprise them with “musical freedom”! Universal design for all ages, children no longer need to learn to play the piano while crying, adults no longer need to awkwardly interpret their dreams, the exquisite gift packaging conveys your message, say goodbye to the three-minute excitement! 【Professional Expansion】From folk music to jazz, unlock more than 15 advanced chords! Built-in Cmaj7/Em9 and other rich chord libraries, play blues, pop and jazz at the touch of a button, no more browsing during live performances, show your talent! 【30 Seconds Installation】Let your musical inspiration flow anytime and anywhere! The tool-free design is suitable for all guitars, for travel, camping or home use. It is ready to use instantly, allowing you to practice efficiently in a short moment. No more complicated preparations! The installation for 38''-39'' guitars is different from that for 40''-42'' guitars. Please refer to the image for more information.</p>