Phone Interview Microphone, Phone Condenser Microphone Ultra Low Self Noise All Metal for Conferences for Speeches for Reports Specification: Item Type: Phone Handheld Microphone Material: Metal Color: Black Cable Length: Approx. 3.5m/11.5ft Weight: Approx. 565.0g/19.9oz Acoustic Principle: Condenser Directivity: Cardioid Output Impedance: 2.2k Ohm Typical Frequency Response: 60Hz~20KHz Maximum Sound Pressure Level: 100dB SPL (F=1kHz, THD<1%) Sensitivity: -35dB?2dB (F=1kHz, SPL=1Pa, 0dB=1V/Pa), S/N Ratio: 75dB Typical Equivalent Noise (A-Weighted): 19dB Typical Dynamic Range: 81dB Typical Working Temperature: 0~50? Fit for / and other mobile phones How to use: 1. Take out the microphone and plug it into the device before use Package List: 1 x Handheld Microphone 1 x Sign Flag 1 x Bag 1 x Manual Note: 1. Adopt 3.5mm TRRS interface for output. For mobile phones with other interfaces, please equip with the corresponding conversion cable. 2. When used for system phone, it can work normally in the recording mode, and most mobile phones will have incompatibility in the default video mode (in this case, it is recommended to use third-party video software). When used for iOS system mobile phone, it can be used normally in all recording modes, video modes and third-party video software. 3. Do not use this device near heat sources or interference sources, such as radiators, ovens, refrigerators, air conditioners, mobile phones and WIFI hotspots 4. Please avoid falling, bumping or hitting hard while in use 5. Do not use the device in the rain or humid environment, otherwise there will be a danger of short circuit 6. Please store the product in a dry environment