The microphone's standard 3.5mm audio jack fits most smartphones, PCs, and laptops (a 4-pin to 3-pin adapter is included). recording pen, VCR, most iPads or iPods with a 3.5mm female port. The lavalier microphone adopts updated omnidirectional and automatic noise canceling sound detection technology, which automatically filters out all kinds of background noise and records clear and crisp sound for all your business applications.Using the principle of human body acoustics, the high sensitivity and anti-interference receiver microphone (-32dB +/- 1dB), the sound is more clear and high fidelity, without howling. The lightweight lapel microphone is easy to carry. Small and lightweight lavalier phone microphone, we have a special PU storage bag so that the cable is not your "nuisance" ". PU material more resistant to moisture and scratches, better protect your microphone. Record video indoors and outdoors, ideal for Youtube recording, interviews, video recordings, live broadcasts, webinars, lessons, conversations, podcasts, dictation , etc, a perfect gift for your friends and families. What You Receive: 1 x Microphone with Clip; 1 x 2m Extension Cable; 1 x Universal Adapter (OMTP); 3 x Windmuff; 1 x pu portable bag Specifications Sensitivity: -32dB ± 1dB Directivity: omnidirectional Impedance: ≤2.2KΩ Operating voltage: 2V Response frequency: 100Hz-16KHz Cable length: 2m