• Type: Electret
• Output Level: 0 to 1.4v
• Frequency response: 200 - 3000 hz
• Impedance: 1K Ohms
• Load impedance: 50 ohm to 100K ohm
• Roger Beep TX time. 1/2 sec (approx)
• Power: 9v battery or regulated power supply
• Current drain: 8 mA (TX)
• Weight : 2 lbs.
• Shipping Weight: 4 lbs.

NOTE: "Very loud" also means it is more susceptible to an RF oscillation (squeal).
This mic requires a well grounded station.