Feature:1. This is a portable headset microphone with a 3.5mm male screw thread plug and wind protection.2. It is widely used by teachers, guides, conference lecturers and so on.3. Professional voice pickup condenser microphone, can record 360 degrees in all directions.4. Dustproof, sweatproof, mainly designed for professionals use indoor and outdoor.5. Suitable for use on stage, churches, lecturers and other applications require minimal microphone visibility with manual manipulation.Spec:Condition: 100% Brand New Item Type: MicrophoneMaterial: Metal+ABSColor: As Pictures Shown Weight: Approx. 77g/2.7ozPolarity Mode: OmnidirectionalFrequency: 50hz-16 KhzSensitivity :-60 Db / -3dbImpedance: 1,500 Ohms /-30% (at 1 Khz)Operating Voltage: 1v-10v DCUsed with Voice Amplifiers, Especially Suitable for Stage Performance, Performance, Dancing, Singing, TeachingPackage List:1 x Microphone