•BOYA BY-M17R is a super-cardioid shotgun microphone,which is designed for DSLR cameras,camcorders,and recorders •With its excellent quality and super-cardioid directivity,it can be widely used for everyday recordings,such as video shooting,video blogging,podcasting,etc. •It has a standard 1/4-inch mounting thread that allows the BY-M17R to be mounted on any standard cold shoe mount. With the integrated shock-absorbing mount,vibration in any shooting environment can be effectively reduced •The BY-M17R is made of rugged ABS for clear sound despite its lightweight Specifications: •Material: ABS •Acoustic principle: Condenser microphone •Pointing type: Super-cardioid •Frequency Response: 20-20,000Hz •Sensitivity: -42±3dB (0dB=1V/Pa @ 1KHz) •Output impedance: 50 Ω •Signal-to-noise ratio: 78dB or more •Output connector: 3.5mm TRS connector •Power supply: 1 x AA battery (not included) •Endurance: 50 hours •Net weight: 116.5g (4.11oz) •Dimension: 240 x 106 x 64mm (9.45 x 4.17 x 2.52") Package included: •1 x Microphone •1 x Windproof Foam •1 x English Manual •Other items not included