Specification:
Polar pattern: Omni directional 3.5mm connector
Sensitivity:-30dB+/-2dB
Frequency Range: 50Hz-20KHz
Output Impedance: ≤2.2 kΩ SNR: >58dB
Standard Operation Voltage: 4.5V
Operation Voltage: 1.0V-10V.DC
Wire Length: 3 m (9.84ft)

Compatible Models:

for Sony:
MEX- GS610BT MEX-N5100BT MEX-GS8100BH MEX-N6000BT MEX-M70BT MEX-M50BT XNV-660BT XNV-770BT XAV-72BT XAV-712HD XAV-70BT XAV-701HD XAV-68BT XAV-62BT XAV-622
XAV-602BT XAV-64BT XAV-601BT WX-GT90BT MEX-N5000BT MEX-GS600BT MEX-BT5000 MEX-BT5700U MEX-BT4700U MEX-BT4000P MEX-BT4100P MEX-BT39UW MEX-BT3900U
MEX-BT3800U MEX-BT38UW MEX-BT3700U MEX-BT3100P MEX-BT31 MEX-BT3000P MEX-BT2900

for Alpine:
INA-W910 INE-NAV40 INE-S920HD INE-W927HD INE-W940 INE-W957HD INE-Z928HD IVE-W535HD IVE-W555BT UTE-42BT UTE-52BT CDE-W265BT

Features:
Adopting electret condenser cartridge with high sensitivity, low impedance, anti noise and ant jamming capability
Aftermarket microphone works with most car radios with 3.5mm Mic input.
With fast and accurate data transmission, which could the voice clearly and stably under kinds driving occasions

Packaging include:
1x 3.5mm mono Car Microhone Dash Mount & Visor Clip

__________________________________________Shopping at the "name" - BLUE ELF, be sure of the qua-lity and service.