Shure BETA181/BI
Bidirectional Side-Address Microphone


Our Price: $499.00
List Price: $624.00
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Shure's Beta 181 is an ultra-compact side-address instrument microphone with interchangeable capsules. It is designed for discrete placement and control in live and studio environments. The BI model features a bi-directional polar pattern capsule.


  • Interchangeable capsules with multiple polar pattern options (cardioid, supercardioid, omnidirectional, bidirectional) deliver the ultimate in low-profile application flexibility
  • Small diaphragm design provides superior audio with textbook polar responses in a form factor compact enough to get close to the source in the tightest conditions
  • Precision-engineered, side-address design features innovative locking ring to provide secure connection between capsule and preamplifier with integrated XLR connections


  • Type:    Condenser (Electret)
  • Frequency Response:    20 to 20,000 Hz
  • Polar Pattern:    Cardioid, Supercardioid, Omnidirectional, Bidirectional
  • Phantom power required?:    11–52 V DC phantom power (IEC-61938) 2.4 mA, maximum
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