Car External Microphone 3.5mm in Wires For Stereo Audio Bluetooth Hands Free Description: 100% Brand new and high quality 3.5mm connector Hands free external Bluetooth microphone For Sony Indash to enhanced sound quality It is an optional external microphone for select Sony in-dash head units with built-in Bluetooth that feature a 3.5mm microphone input. The microphone can also be used with external Bluetooth interface module . The Mic will provide better performance in noisy environments. This is aftermarket part that will Compatible with most Sony models indash car radio,High quality manufacturing. Adopting electret condenser cartridge with high sensitivity , low impedance , anti noise and antjamming capability , with fast and accurate data transmission,which could guarantee the voice clearly and stably under kindsdriving occasions, it's highly improved the speech quality of hand free car kitcommunication system. Adopting humanity design with separation fixing base , is more easy to install and reliable. 3.5mm connector Sensitivity:-30dB+/-2dB Frequency Range: 50Hz-20KHz Output Impedance: 2.2KΩ SNR: >58dB Standard Operation Voltage: 4.5V Operation Voltage: 1.0V-10V.DC Length: 300cm Ref Accessory Type part no: For Sony Partnoi 154279811 XAMC10, XA-MC10 Compatible For  DSX-S300BTX DSX-S310BTX MEX-BT5700U MEX-BT3700U MEX-BT3800 MEX-BT4700 MEX-BT5700U XAV-70BT MEX-BT3900U XNV-660BT XNV-770BT XAV-72BT XAV-62BT Package Included: 1 * 3.5mm Microphone External Assembly for Car bluetooth enabled audio stereo system