This speaker can be used both indoors and outdoors with excellent installations; This unit is a speaker that can be used indoors and outdoors for broadcasting in stations and school playgrounds. ● Adopts a high-clarity design unit and round enclosure effect allows you to clearly spread the voice. It also has excellent waterproof performance. (IPX4) Comes with mounting hardware that allows for flexible angle settings in horizontal and vertical directions, making it safe and easy to install. Can also be attached to a pole. Product Specifications: Type: Full range sealed type; Input impedance: 500 Ω (20 W), 1 kΩ (10 W), 2 kΩ (5 W) Speaker cable; Rated input: 20 W, 10 W, 5 W; Output sound pressure level; 1: 94 dB (1 m/1 W) ; Frequency response: 150 Hz 15 kHz (-10 dB) ● Fire Law related item type ※2: 20 W: L class, 10 W: L class, 5 W: L classification of direction characteristics ※3: X acoustic power level ※3: 98 dB ● Operating temperature range: -20 °C to +55 °C ● Waterproof performance: IPX4 ● Dimensions: W : 15 mm H: 29 0.1 inches (3 mm) D: 6.7 inches (170 mm) (not including speaker mounting hardware and fixing hardware); Weight: Approx. 7.1 lbs (3.5 kg) (main unit), Approx. 3.5 lbs (1.5 kg) (speaker hardware and fixing hardware); Finish Enclosure (front panel and cabinet): PP resin, gray paint (Mancel N5.5 close color); Speaker hardware, fixing bracket): Stainless steel; Angle adjustment range: Horizontal use. Left and Right 90° Vertical: 0° to 30° Downward; Horizontal: Left and Right 0° to 30° Vertical: 0° to 90° Undereaves (Ceiling); Vertical: Downward Angled 90° *1 Output sound pressure level is a value determined by JIS and the voice alarm "second signal". The two types are determined by the sound pressure (peak value) found in the anechoic chamber as the sound source of the second signal, which is determined by the fire fighting law. 3 Directional Characteristic Classification and Acoustic Power Levels are based on the requirements of the Fire Act.