Reference condenser vocal microphone head with C7 supercardioid polar pattern capsule, The C7 WL1 Condenser Vocal Mic Head for DMS800 & WMS4500 Handheld Transmitters from AKG is a microphone capsule equipped with a supercardioid polar pattern. It is designed to handle high-sound-pressure levels and used to capture audio when paired with a wireless handheld transmitter and receiver (sold separately). With natural clarity Microphone Capsule Electret Condenser Diaphragm 3/4" / 19.05 mm Polar Pattern Supercardioid Performance Frequency Range 20 Hz to 20 kHz Maximum SPL 150 dB SPL (A-Weighted, 1% THD) Sensitivity 4 mV/Pa Equivalent Noise Level 21 dB A-Weighted Connectivity Compatible Transmitters AKG: DHT800, HT4500 Physical Construction Material Steel Wire Grille Dimensions H: 3.2 x W: 3.2 x L: 4.2" / H: 8.1 x W: 8.1 x L: 10.7 cm Weight 0.7 lb / 0.3 kg