QFX M-310 Wireless Dynamic Professional Microphone

Unidirectional dynamic microphone

Frequency response: 100 Hz to 1,000 Hz

Sensitivity: -72 dB

Impedance: 600 ohms

Operates on 1 AA battery

Effective distance: 49 to 98 ft. (15 to 30 m)

Includes 2 AA batteries, receiver, wireless antenna, and cable