LM7x is a low-profile unidirectional lavalier microphone using a 6.84 mm back-electret condenser capsule. It provides a 50 Hz–12 kHz frequency response, a sensitivity of −45 dB re 1 V/Pa, and an output impedance of 2.2 kΩ. Max SPL is 125 dB. The kit includes four detachable cables with 3.5 mm, Hirose 4-pin, TA3F and TA4F adapters, plus a windscreen, mic clip and carry case for portable, broadcast-ready use. Operating voltage 1.5–12 V DC.