The Calista Perfecter Pro Heated Round Brush is a hot styling tool with a heat-safe bristle design that makes curling, smoothing, and styling your hair easy, safe, and fun. Top-quality nylon bristles glide through hair for clamp-free styling while protecting hands and scalp from high temperatures. High-performance dual heaters provide super quick and even heat across entire barrel, providing long-lasting results. Our Fusion Technology combines Ionic and Ceramic properties to create damage-free volume, frizz-free smoothness, and healthy shine. Equipped with easy-to-read LCD display and automatic 1 hour safety shutoff. Tool heats up in just 3 minutes. Adjust temperature between 325°F - 395°F using +/- buttons. Press Power button twice to lock temperature in place. 6’ swivel cord turns 360° for styling ease. Use on dry hair only. Hold the on/off button for about three seconds to turn on. If your hair is fine, sensitive, or over-processed, choose a lower temperature setting. Coarse, heavy hair that is resistant to curl will need a higher setting. Dual Voltage device.