The Boya unidirectional microphone BY-VM01 is a compact and lightweight condenser microphone designed for both video and still cameras, offering superior sound quality compared to the built-in microphones of video DSLRs. Attaching easily to the camera hot shoe via its universal cold shoe adapter, this microphone utilizes a 3.5mm mini-plug to connect to the camera's microphone jack for audio transmission. Below the cold shoe connection, there is a threaded mount, enabling external attachment onto a tripod. Additionally, the microphone features a cable stop mechanism that secures the cable in place, preventing accidental noise during recordings. Specifications: Type - Electret Condenser, Sensitivity(+/-3dB) - -40dB +/- 3dB / 0dB=1V/Pa, 1kHz, Frequency Response - 38-20,000Hz, Signal-to-Noise Ratio - 75dB or more, Output Impedance - 1.0k or less, Power Source - 1.5V AAA battery, Plug - Mini-pin plug (3.5mm), Weight - 62g, Dimensions (LHD) - 1097518mm.