Smooth and Natural Audio Reproduction 
Equipped with a brass 1-inch dual-diaphragm capsule, the SM4 captures clean, controlled low-end and smooth, detailed highs. The uniform cardioid polar pattern provides superior off-axis rejection of unwanted noise, and the large “sweet spot” reduces proximity effect.  
 
Patent-Pending Interference Shielding Technology 
Block unwanted RF noise from common wireless devices including cell phones, laptops, and wi-fi routers. The proprietary system features an integrated pop-filter and woven mesh faraday cage that shields the microphone capsule for clean audio capture.   
   
Mix-Ready Sound, Effortlessly   
Internal pop filter enables clean, plosive and rumble-free recordings for easier post-production work. Compress or EQ to taste without bringing forward unwanted elements that can plague recordings and mixes.  Additionally, the SM4 works with any interface to achieve professional-quality recordings, no matter the environment. 
  
Exceptional Flexibility for Vocal and Instrument Recording  
Optimized to capture a wide range of sound sources from soft vocals to loud instruments including drums, guitar amps, and horns with exceptionally high-SPL handling (max SPL of 140dB). 
 
Legendary Durability & Camera-Ready Design 
Rugged, all-metal construction and exceptionally high-SPL handling from a brand with decades of experience in producing reliable gear for the stage and studio.  A sleek, low-profile design won’t obscure the performer or environment.