The key feature of this tambourine is its tunable head. Unlike traditional tambourines with fixed tension, the Tunable Metal Tambourine allows you to adjust the tension of the head. This feature enables you to fine-tune the pitch and resonance of the jingles, giving you full control over the tambourine's sound to suit your musical preferences and performance needs. Whether you prefer a sharp and cutting tone or a warm and resonant sound, this tambourine can be tailored to your liking.