MIC-01 3.5mm Stereo Digital Studio Microphone Shotgun Recording For Canon Nikon Pentax DSLR Camera              Feature:        Model: MIC-01     Color: Black     Fits for D-SLR cameras with 3.5mm mic socket with a standard hot shoe base (Note: If your camera don't have 3.5mm mic socket， this microphone won't fit.)       Frequency Response: 30-15000 Hz       Sensitivity: -40 dB (0dB = 1 V\/Pa at 1 KHZ)       Pointing to the features: single directional x 2       Output Impedance: 200ω (Ohm)       Signal-to-Noise Radio: 76 dB (1 KHZ at 1 PA)       The Loudest Level: 120 dB at 1 KHZ harmonic distortion in 1% or less       Type: MS (Mid – Side) stereo wire     Cable Length: About 11.02 inch \/ 28cm     Power Requirements: 3V CR2 battery     Battery Life: About 800 hours (at room temperature)     Size: 5.12 x 2.36 x 1.38 inch \/ 13 x 6 x 3.5cm (L x W x H) (not including conductor)     Weight: 150g          Pay attention:            1. If this microphone is not connected with your D-SLR camera， after you put the battery inside and push the button， the indicator LED will flash for a second only    2. If this microphone is connected with your D-SLR camera， the indicator LED will keep dark during recording. And if the indicator LED keeps flash， it means the battery is too weak and you need to change a new battery.             Package included:         1 x Teyeleec MIC-01 Microphone ( Not included Camera )     1 x Wind Screen   1 x 3V CR Battery     1 x Use Manual         Detail pictures: