?Lower Radiation & Noise Reduction Design? :The professional hair dryers have a overheated and low electro magnetic fiel protection. The power is automatically interrupted when the temperature rises too high. Technology with low electromagnetic waves ensures low radiation. In addition, an intelligent noise reduction design, reduce noise, let you relax! It's good for pregnant and children to use. ?2 Concentrator & 1 Diffuser Accessories?: There are three types of detachable nozzles: smooth nozzles, brush nozzles and diffuser nozzles for different hair styles requirements. The 2 air-collecting nozzles are perfect for straight and natural hair styling customization. Diffuser nozzle can make the curls more obvious and help define hair natural curls and waves to create a fluffy hairstyle. Hot & Cold Alternating Mode?: The hairdryers for women features one speed cold wind control knob and three heat settings, which allow you to easily control temperature and wind speed, uniform heat distribution and healthy hair care. The one-button cold wind function can help you quickly style and dry your hair, giving you a salon finish at home. ?Powerful Airflow Hair Dryer?: 2000W AC Motor diffuser hairdryer for fast efficient styling. The strong airflow dries your hair faster, and styling performance even for thick wavy hair in 5 minutes that save your precious time in hair drying. Travel hair dryer with diffuser weights 1.74lb. High Concentration Negative ION to Moisturize Hair?: This travel hair dryer adopts professional negative ion technology, which can releases tens of millions of moisturizing negative ions,constant temperature hair care, nourish hair, reduce static electricity, reduces protein damage, prevent heat damage, make your hair smooth, frizz-free and shiny.