TV, motion picture, video production
Tour guide
Lectern
Houses of worship
CK 55 L
The microphone shall be a cardioid condenser clipon microphone for handsfree use by lecturers, preachers, tour guides, video production personnel, etc. The microphone shall perform to the following specifications: frequency range: 15 to 18,000 Hz; sensitivity at 1 kHz: 8.8 mV/Pa; electrical impedance: 200 ohms. The microphone shall measure 8 mm (0.3 in.) in diameter and 23 mm (0.9 in.) in length, the microphone cable shall be 1.6 m (5 ft. 4 in.) long. The microphone shall weigh 2.5 g (0.08 oz.) and be finished in matte black.
