The Galls Street Thunder II is a 100-watt, 120 dB (at 10 feet) high-intensity siren speaker designed for emergency vehicles. It features a durable, weather-resistant plastic and metal housing with a high-quality compression driver. The unit is designed for easy mounting, often with a versatile bracket for full-axis sound orientation. 

Power Rating: 100 Watts.

Sound Output: 120 dB at 10 feet.

Design: Driver/projector combo designed for versatile mounting, often behind the grille or on the bumper.

Durability: Non-fatiguing, self-aligning sound chamber with durable, gray baked-epoxy finish on the driver.

Dimensions: 5.5"H x 8"W x 5.5"D.

Weight: 6.5 lbs.

Compliance: Meets Class A sound requirements.

Compatibility: Designed for use with 100W sirens, including Street Thunder models