ITEM NAME:3.5mm Jack Stereo Interview Microphone Camera DV Outdoor PC Recording Video Mic Product Description Description: Specifications: Material: ABC Type: Back-Pole Capacitive Microphone Pointing Characteristics: Single directivity x2 Frequency response: 30-15000Hz Output impedance: ≠¤200 SNR: 76dB (1KHz at 1Pa) Sensitivity: - 40 dB ±2 dB (0 dB = 1V/Pa1KHz) Maximum sound pressure pole: 120dB (1KHz harmonic distortion≠¤ 1% T.H.D) Installation method: universal hot boot seat Access mode: 3.5mm microphone jack Product size: 125*55*18mm/4.92*2.16*0.7'' Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 X Microphone 1 X Dry Battery 1 X User Manual.Access mode: 3.5mm microphone jack. Type: Back-Pole Capacitive Microphone. Included: 1 X Microphone. Output impedance: ≠¤200. 1 X Dry Battery. Pointing Characteristics: Single directivity x2. Due to the different display and different light, the picture may not show the actual color of the item.