Professional Noise Cancellation F11-2 Wireless Wireless Microphone

F11-2 collar wireless microphone iphone/android & type c supported 99% noise cancellation details: battery backup : 5-6 hours model number: f11-2 mini microphone 95-100% noise cancellation communication: wireless- 3.5mm/ iphone / type c all mobile phone & camera use: computer microphone, conference microphone, karaoke microphone, other, church, stage performance,• interview, speech, smart phones, recording, singing, teaching, portable audio player, communication, broadcasting, kids, gaming material: metal, abs function: noise cancelling, portable, condenser microphone, with sound cardpolar pattern: omni-directional, cardioid, figure hypercardioid type: dynamic microphone, electret condenser microphone• signal to noise ratio: 85db frequency response rate: 25hz-25khz