Professional Omni-directional Wireless Microphone Sans Fil with 2.4g Receiver Noise Cancelling Headset for Teacher Use

communication:Wireless Feature:Condenser Microphone, Light-weight, Noise Cancelling, Portable, With Sound Card style:Headset Microphone type:Dynamic Microphone Use:COMPUTER MICROPHONE, Church, Conference Microphone, INTERVIEW, Karaoke Microphone, Recording, SINGING, Speech, Stage Performance, Teaching, Other model number:K15 Brand Name:Topworld place of origin:Guangdong, China connector type:3.5mm Headphone Plug, For Iphone, Micro USB, Type C frequency response rate:20 Hz-20 kHz material:ABS Maximum SPL:110 dB polar pattern:Omni-directional private mold:No sensitivity:-36dB±2dB signal to noise ratio:60DB