Features: 21" size, suitable for both kids and adults. Body is made of spruce, compact and light-weight. Built-in 3 band equalizer(treble, bass, volume ), can control volume and tone. 6.35mm output can connect to sound amplification equipments externally. Exquisite workmanship, carved sound hole, elegant brims. 4 nylon strings produce really nice sound. Ideal for music lovers.