Ionic Plus Hair Straightening Brush Blac. Benefits: Reaching more hair with every pass, the straightening brush is a huge time saver in a morning rush. T-sensor technology monitors heat by millisecond, and intelligently adjusts to your unique style. Combined with PTC heating and 16 temperature settings, the heated brush ensures no heat loss for effective styling, and best protects your hair against overheating damage. Features: 10M+ ions reduce frizz and boost shine. Tourmaline ceramic bristles glide through hair with no snagging or breakage, making second-day hair look the best it has ever looked. An ergonomic and anti-scald design. Key Notes: Buttons are located at the end of the handle to avoid accidental touch so you can style at any angle. Contoured handle allows secure and comfortable grip. The tip of bristles and side bristles are cool to prevent scalp and hand burns.