DM-1300US The handheld microphone shall be moving coil, dynamic type with unidirectional pattern. Specifications shall include impedance of 600 ohms, balanced, sensitivity -54 dB (1k Hz 0 dB=1 V/Pa) and frequency response of 70 – 15k Hz. The talk switch shall be short-off type, slide on/off switch and a microphone holder shall be included. The connection cable shall be included 1-core shielded cable, unbalanced, 10 meters. The cable connector shall be 1/4" unbalanced phone plug. The microphone finish shall be body: diecast zinc, painted metallic gray; head: diecast aluminum, zinc plated steel wire; color: metallic gray. Dimensions (D x L) shall be 2.4” x 6.69” and weight shall be 9.65 oz. The handheld microphone shall be TOA model DM-1300US.