vocal pickup condenser microphoneDustproof does especially for indoor and outdoor professionalsindustry-standard sound quality, coupled with amazing durability make this headphone microphone mini Perfect for almost all vocal and speech-sound applicationsEnjoy the freedom of movement, the discreet and exceptional operationAdjustment performance for any occasion-miniature condenser microphone for almost invisible useExceptional audio quality for your presentation, fitness and other vocal applicationsMonomer: back type electretDirectivity: unidirectionalFrequency range: 50Hz-16KHzSensitivity: -39dB +/- 1 dB / (0dB = 1V / Pa at 1 KHz)Output impedance: 680 +/- 30% (at 1 kHz)Operation voltage: DC 10V-10VStandard supply: DC15 VCurrent consumption: 05mASignal to noise ratio: 56dBWire rod: 20 * 10MCable length: 12 mAnnex: wind-resistant cottonMaterial: plastic + metalcolor: blackPackage content:1 * headband microphoneOnly the content of the previous package, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.