ALL METAL MATERIAL: Wired microphone is made of all metal, and then polished and painted by a press. It is hard and drop proof, impact resistant. HIGH EFFICIENCY FILTER COTTON: Wired singing microphone has a built in high efficiency filter to block outside wind noise interference. LARGE SOUND PICKUP AREA: Handheld microphone pickup area is large, excellent sound quality, effectively reduce interference. Plug and play, very convenient. ENHANCE RADIO EFFECT: Wired mic effectively filter noise noise, metal sound head built in sound insulation cotton, anti interference current sound, enhance the radio effect