1. Total length of product: 25mm 2. Frequency response: 50Hz-20KHz 3. Impedance: 2.2k ohm 4. Directionality: omnidirectional 5. Plug: 3.5mm commonly used plug 6. Material: plastic 7. Application: game console/mobile phone/laptop/tablet/recording pen etc. to improve the sound quality of the original built-in microphone 8. Microphone size: 4.5X2.2mm
