EDUTIGE 3-Pole Uni-Directional Microphone ETM-008 UNIDIRECTIONAL: Unidirectional 3-Pole (TRS) Microphone for DSLR cameras, Mirrorless Cameras, GoPros, Action Cams, and Digital Voice Recorders HIGH QUALITY AUDIO : Excellent Signal-Noise Ratio, 69dB+ SMALL and DURABLE: Plug and Play, Gold Plated Jack, Durable Metallic Body, No Batteries needed VERSATILE: Comes with a Cable and Clip to use as a lavalier microphone USE : Recording Interviews and Meetings, and Making Videos 1 microphone 1 extension cable,1.3m (4.3ft) long 1 lapel-clip for hands-free recording 1 foam windscreen to reduce ambient noises 1 premium carrying pouch Type: Electret Condenser Microphone Directivity: Unidirectional Sensitivity: -38 DB (1 kHz at 1Pa) Frequency Response: 100 - 12000Hz Signal-to noise ratio: 69dB + Connector: 3.5 mm 3-pole plug (gold-plated) Accessories cable length: 1.3m (4.3ft) Dimensions: 23.2mm x 13.1mm (without extension cord) / weight: 4.5 grams (without extension cable and plug) Power supply: Plug-in power capability, no batteries requires Operating conditions: -20  C - 70  C