DSPPA D6561 Wired Hand-held Dynamic Microphone Features ● Dynamic microphone for conference system ● With wide frequency response and high fidelity ● Hyper cardioid sound collection technology ● High pick-up sensitivity, low acoustic feedback Impedance 600Ω Sensitivity -73±3dB Frequency response 60Hz~17KHz Directivity Super heart-shaped Packing Size 68x258x140mm Gross weight 0.7KG