Specifications: Brand: BOYA Model: BY-DMR7 Type: Condenser Microphone Polar Pattern: Super-cardioid Recording Format: WAV, 16bit/24bit, 24kHz/48kHz Sampling Rate Frequency Response: 50Hz to 20kHz Maximum SPL: 0dB Gain Setting, 1kHz at 1% THD, 1000 Load 110dB SPL Signal to Noise Ratio: 78Db Operating Temperature Range: -17 to 57 Audio Output Impedance: 47 Headphone Output Impedance: 5 Plug: 3.5mm Jack Plug Power: 2pcs AA Batteries (not included) Item Size: 24.9 x 5 x 9.8cm / 9.8 x 2 x 3.9inch Item Weight: 140g / 4.9oz Package Size: 28.5 x 12.8 x 7.2cm / 11.2 x 5 x 2.8inch Package Weight: 311g / 11oz Features: On-camera Condenser Microphone Super-cardioid Polar Pick-up Pattern Records 24-bit/48kHz WAV Audio Files to Micro SDHC Card Easy-to-use Menu System and LCD Display Switchable Low-cut Filter 3.5mm Headphone Monitor Input Standard Size Shoe Mount Includes Detachable 3.5mm Gold-plated Audio Cable and Foam Windscreen Note: Batteries and Memory Cards are not included BY-DMR7 can continue working as a microphone even without a memory card installed Remember to power off before inserting or removing the memory card Package Included: 1 x BY-DMR7 Condenser Microphone 1 x Foam Windscreen 1 x 3.5mm Audio Cable 1 x User Manual