Features:A great combination of microphone & earphone, can help you both speak clearly and hear clearly, can also protect your privacy when needed, very practical.Features high sensitivity and omni-directional sounds output, effectively reduce environmental noise, make the sound quality reach the professional level.Compatible for iPad, computers and various smartphones, such as for iPhoneX Xs for Samsung, Huawei, etc; Can be widely used in various occasions such as live recording and video recording, webcast, video presentation and so on.With a microphone adapter for more models, such as DSLR, , Nikon and so on.Small collar clip design, can be clipped to the neckline of your tie or shirt, or place it in your pocket to use; The cable length 79inches (2m) with standard 3.5mm Jack.Small size and exquisite appearance, using high quality metal shell material, solid structure, with a leathery storage bag.Specifications:Color: BlackMaterial: PlasticDirectivity: Omni-directionalFrequency Response: 20HZ-16kHZLine Length of Microphone: 2m / 78.7inSensitivity: -30dB ± 2dB RL=2.2kΩ VS=3.0VMicrophone Jack: 3.5mmAdapter Jack: 3.5mmItem Weight: 32g / 1.1ozPackage Size: 14.5* 10 * 3 cm / 5.7 * 3.9 * 1.2inPackage Weight: 47g / 1.7ozSpecification Parameters of Earphone:Sensitivity: 108dB土3dBFrequency Response: 15Hz--20KHzImpedance: 16ΩPackage List:1 * Microphone1 * Storage Bag1 * AdapterNote: The main function of this microphone is to record sound rather than act as a speaker.