ZJ010MR Mono 2.5mm Angle Head Plug Car Navigation GPS Speaker External Paste Bluetooth Microphone, Length: 3m

1. Frequency response: 50Hz-20KHz 2. Impedance: 2.2K ohm 3. Directionality: Omnidirectional 4. Channel: 2 pole mono 5. Wire diameter: 2.5mm/2 core shielded wire 6. Application: car Bluetooth voice call, car GPS monitoring, intelligent voice system voice transmission 7. Function: This microphone can be glued to the instrument panel of the car, or to the sun visor or the rearview mirror, to receive sound at close range and to confirm the transmission of sound quality 8. Microphone size: 9.7X6.7mm 9. Cable length: 3 meters