HANDHELD, CONDENSER, UNI-DIREC for Professional audio system, 5 oz, Mic: External, Cardioid, Dynamic The HCU350 delivers high performance, reliability, and accurate pickup for both vocal and instrument sound. It is an excellent choice for professional recordings, live performances, and other critical sound reinforcement applications. The HCU350 requires an external 9V - 52V DC phantom power source.