Perfect Toddler Ukulele Acoustic Guitar 4 different strings with different undulations will make different sounds(adjustable guitar strings tighten or loose by head button). This toddler acoustic guitar is the perfect toy for children to begin developing their musical aptitude. Acoustic guitar let the children distinguish the scales and help cultivate their sense of music. Acoustic Guitar Kids for 3+ Year Old Boys Girls Kids guitar acoustic is an musical instruments for kids. Allow children to freely explore the world of music. Helps child with hand-eye coordination; develop kids musical skills and creative skills; Boost kids attention and memory levels.