The Meinl Sonic Energy Wah-Wah Tubes are crafted from aluminum and finished in a stunning champagne gold, offering both visual elegance and exceptional sound quality. Tuned to 432 Hz, the tubes resonate with a harmonious and soothing tone, perfect for sound healing, meditation, or musical exploration. To play, hold the tube in one hand and the mallet in the other. Strike the tube, then use your thumb to alternately cover and uncover the Wah-Wah hole, creating the signature, captivating sound that these tubes are known for. This simple yet unique playing technique produces a dynamic and expressive auditory experience.