Click here to find correct Heil adapter for your radio PR10 Studio Microphone with LB-1 Base This small but mighty microphone will bring your radio to life with full speech articulation and perfect balance. Featuring a full 1 1/8” diameter dynamic element, the PR 10 provides excellent clarity and performance across a wide range of transceivers. The LB-1 table base features Integrated into the base we have a PTT control and an LED backlit indicator with three settings that continuously glow, illuminate only while transmitting, or turned off with the three-position switch located on the right side of the base. The base has a 1/8” jack on the back and includes a 24” pigtail to interconnect the base to the proper CC-1 connecting cable. The PR10 Package includes the PR 10 microphone and the LB-1 lighted base, LB-1 requires 2-AA batteries for illumination. A CC-1-XLR series cable is needed to interface this microphone with a transceiver. Features Output Connection: 3 pin XLR PR 10 Generating Element: Dynamic Frequency Response: 85 Hz - 16 kHz Polar Pattern: Cardioid Output Level: -55 dB @ 1,000 Hz Impedance: 600 ohms balanced Diaphragm: 1 1/8” Low-mass aluminium Weight: PR10 12oz LB-1 22.5oz.