Check the listing for details. AZDEN SGM-990+i Mono Shotgun Microphone with Selectable Cardioid Pattern. Condition: New. Listed at 76.70 USD. Designed for high performance with smartphones, DSLRs, and camcorders Directional zoom microphone with 2 switchable pickup patterns 2 settings, 'long' for super-cardioid and 'short' for cardioid Provides focused sound pick up with excellent side noise rejection Wide frequency response (see specifications) The pickup pattern of the built-in microphone on camcorders and DSLR cameras is omnidirectional, meaning that it picks up all sounds in every direction equally, no matter which direction you point the camera. The SGM-990 is a 6 inches long directional, or zoom microphone with 2 switchable sound pickup patterns, 'Long' and 'Short.' Use 'Long' to focus on your sound source or pick up sound from a distance. Use 'Short' for when your sound source is close or covers a broader field. Both settings will provide rejection of unwanted sound from the sides and the back. The SGM-990 has a working range of 20-40 feet, uses 1 AAA battery, and comes with a windscreen and shoe mount microphone clip. More Features Handcrafted in Japan Powered by single AAA battery 3.5mm mini-plug output Comes with shock mount and windscreen Specifications AZDEN SGM-990+i - Shotgun Microphone Mic Element: Electret condenser Frequency Response: 150-18KHz Sensitivity: Long: 55dB / Short: 72dB (at 1kHz 1V/µ bar) Directional Pattern: switchable long (super-cardioid) & short (cardioid) Output Impedance Long: 1.7k Ohms / Short: 660 Ohms (at 1kHz) Power Source: 1.5V DC (“AAA” Battery) Max. SPL: 100dB Signal to Noise: Better than 40dB Plug Cord Assembly: Coiled cord with 3.5mm plug