Compare“BOYA BY-V4D Wireless Lavalier Microphone for iPhone iPad with Charging case, 18H Battery Life, 650ft Range, 4-Channel Omnidirectional Noise Canceling Lapel Mics for Video Recording Interview Vlog” has been added to the compare list
Product description Acoustic Principle: Condenser Polar Pattern: Cardioid Frequency Response: 50-16000Hz Sensitivity -35±2dB(0dB=1V/Pa @ 1KHz) Signal to Noise Ratio 80dB