Shure 596LB, Voice Communication Microphone, 10 Pin ConnectorCondition:* New, Old Stock. In OEM Packaging. Additional Notes:* Frequency Response Designed for Voice Communications* Omnidirectional Mic Element* Double-Pole, Single-Throw PTT Switch* Four conductor, shielded, bare-ended (no connector) coil cord* Does not require DC power for operation* Mounting bracket included* Frequency Response: 200 Hz to 5,000 Hz* Polar Pattern: Omnidirectional* Impedance at 1 kHz: 400 * Output Level at 1 kHz: -33 dB 3.0 dB* Hum Pickup: 36 dB maximum equivalent SPL per 1 mOe electromagnetic field* Cable: 1.5 m (5 Ft) Extended Length, 4-Conductor (2 Shielded), vinyl-jacketed coil-cordShure596LB