Light, rugged head-worn mic for presenters with mini XLR connector for use with B29 L battery operated power supply, MPA V L external phantom power adapter, or AKG WMS bodypack transmitters. From The Manufacturer: The C555 L high-performance head-worn condenser microphone is ideal for handsfree applications, including presentations or onstage performances. The C555 L rests securely and comfortably on the head, and can be attached to the left or right side of the behind-the-neck headband as desired. A transducer shock mount reduces handling noise to a minimum. The moisture shield ensures a high degree of humidity protection for the microphone. The C555 L provides a three-pin mini XLR connector and can be used with all AKG WMS Series body-pack transmitters, B29 L battery power supply, or the MPA VL adapter for external phantom powering. Specification: Type Pre-polarized condenser microphone Polar Pattern Cardioid Frequency Range 80 - 20000 Hz Sensitivity 25 mV/Pa (U=9V, R=10kOhm) Impedance @ 1kHz 2000 Ohms Max SPL for 1% THD 120dB Equivalent noise level (IEC 60268-4) 30dBA Signal to Noise Ratio (@ 94dB SPL) 63dBA Recommended Serial Resistor 10kOhm (2kOhm - 10kOhm) Length (mic only) 195mm (7.7 in.) Max Diameter (mic only) 134 mm (5.3 in.) Net Weight 26g (0.9 oz.) Shipping Weight 260g (9.2 oz.) Finish matte black Audio Output Mini XLR (Female) Contacts 3-pin Cable Length 1.5m (5 ft.) Current Consumption