BY-BM3030 Professional set-top microphone Product highlights: directional condenser microphone Compatible with cameras, cameras and recorders Reception pattern: supercardioid High-quality condenser microphone 3.5mm audio output plug (1 / 8 ) Frequency response: 40-20,000 Hz Sensitivity: -38dB 3dB @ 1KHz Power source: 2 AA batteries SNR: 78dB Battery life: 150H Overview: BOYA BY-BM3030 is a supercardioid professional condenser microphone set-top type with a 3.5 mm mini plug connector, compatible with digital SLR cameras, cameras, voice recorders equipped with a 3.5 mm microphone input. It has an integrated anti-shock mount that can be mounted on a camera or tablet, perfect for interviews, ENG and more. The high-quality unidirectional condenser capsule reduces background noise while recording audio more clearly. This microphone includes a foam face shield and hair clip, Helps to reduce crackling and wind noise when recording dialogue, and is powered by two AA batteries (not included) for up to 150 hours. Super-Cardiod condenser microphone This microphone provides better sound than the built-in microphones of DSLR cameras, cameras, and voice recorders. Headphone jack The microphone has a built-in headphone jack for real-time monitoring of the source. Compatibility It comes with a 3.5 mini plug connector mm and is compatible with any DSLR, camcorder and voice recorder equipped with a 3.5mm microphone input. Powered by AA batteries, up to 150 hours of use with two AA batteries. Acoustic Principle: Linear Gradient Acoustic Mode: Super Cardioid Frequency Response: 40-20 000 Hz Sensitivity: -38dB 3dB @ 1KHz Output impedance: 200 Battery life: 150H Dimensions: 209.7 x 103.3 x 50 mm (8.2 "x 4" x 2 ") Weight: 132 g (4.7 oz)