Product description battery backup : 5-6 hours model number: f11-2 mini microphone95-100% noise cancellation communication: wireless- 3.5mm/ iphone / type c all mobile phone & camerause: computer microphone, conference microphone, karaoke microphone, other, church, stage performance,• interview, speech, smart phones, recording, singing, teaching, portable audio player, communication, broadcasting, kids, gamingmaterial: metal, absfunction: noise cancelling, portable, condenser microphone, with sound cardpolar pattern: omni-directional, cardioid, figurehypercardioidtype: dynamic microphone, electret condenser microphone• signal to noise ratio: 85dbfrequency response rate: 25hz-25khz