Perfect for any noisy environment but in particular sports events, music concerts / festivals, aircraft noise, vacuum noise, garden power tool noise, shopping centres.Multi-directional headband, users can place the headband on the front, upper or neck of the head;Can be used as a substitute for cap-type ear cups;The internal ventilated headband reduces head pressure and is comfortable to wear in warm and humid environments;Non-deformable headband shell suitable for various harsh environments;Quick and easy replacement of the unit ear pads;The retractable headband can be better fixed when worn on the back of the head and under the chin;Insulation design can be used in power environment;Can reduce noise by 25dBProduct features: the adjustable headband made of non-metallic material is suitable for different types of rotating cup and more comfortable to wear.Suggestion: wipe and clean the outside of the earmuffs. It is better to wear them with the earplugs.Adjustable activity area, can adjust the size of the earmuffs according to personal needs to ensure the comfort of the headband.Electrically insulated headband, double headband design, helps reduce heat accumulation while providing good balance for more comfortable wear.Use: concentrate, protect hearing is your home, dormitory, self-study classroom, travel , factory, construction site downtown and other places from noise interference of good helper, is your healthy life of good partner.The side movable interface of earmuffs can be rotated to adjust the Angle of earmuffs according to different face types.Frosted fiber headband, pressure diffusion technology, artificial design of the headband, using frosted special fiber production, wear simple fashion, long use.High quality sound-absorbing cotton. The interior of the ear army is filled with high-quality sound-absorbing cotton. The dense gap of sound-absorbing cotton can grThe delivery