FOLDABLE ACTIVE PROTECTIVE HEADPHONES - Inner mesh panties Article type: Noise Cancelling Earmuffs Material: ABS Applications : Do shooting, hunting, sporting events, studies, woodworking projects and lawn care, great do operating heavy machinery or landscaping work. List of packages: 1 x Noise Cancelling Earmuffs 1 x Connecting Line 1 x Manual Cutting in metal in a sustainable way, a solid frame and an alternative model of opening made of metal. 1. Thanks to better noise reduction, the sound heard by internal amplifiers is very natural and clear. 2. Ergonomic headband with soft padding reduces pressure on the head for ultimate comfort. 3. Compact folding design for easy storage and convenient do placement in a bag, backpack or briefcase, taking up only a small space. 4. External audio jacks allow ear cups to act as stereo headphones when connected do MP3 players or other audio sources. 5. Ideal do shooting, hunting, sporting events, carpentry projects and lawn care, extremely suitable do handling heavy machinery. 1. Stretch the headband do full size, put it on your head and cover your ears with ear cups.2. Adjust the size of the headband and the height of the ear cups so that the headband supports the ear cups and the ears are comfortable. 3. Earmuff cushions should fit snugly do of the head.4. Adjust the band to ensure proper tightness and effectively isolate noise.