This model has also received the Long Life Design Award. Yamaha YAMAHA Silent Guitar Classical Guitar SLG-100N Brand: YAMAHA With its distinctive structure featuring only a frame and no resonating body, this silent guitar achieves unprecedented quietness, allowing you to enjoy playing even at night without worry. It pursues a natural acoustic guitar sound with its unique technology. Compact and useful for travel and live performances. The SLG-100N is a nylon-string model. Many bossa nova artists have used it on stage.