BLX14E/SM31-S8 Wireless Fitness Headset System with SM31FH Headset Microphone, Analog, 823 to 832 MHz

The SM31FH cardioid condenser microphone with analogue transmission, designed for use in fitness instruction, features moisture-repelling construction for true performance in humid applications where corrosion damage is common.

Features

• Power and battery status LED
• Adjustable gain control
• Quick & easy frequency matching
• 2 AA batteries (included) provide up to 14 hours of continuous use
• 300 feet (91 m) operating range (line of sight)