MadeInChina.com > Video > Electrical & Electronics > Speaker,Trumpet & Buzzer > Electrostatic Speaker
Museum Uses Focused Sound Propagate Ultrasonic Directional Straight Speaker

336

0.1W Micro Headphone Raw Speaker

478

Museum and Exhibition Focused Beams Spotlight Sound Directional Speaker System

425

Super Directional Ultrasound Loudspeaker with Transmitter Wall Mounted Spotlight for Museum Hospital

457

Commercial Ultrasonic Directional Beam Sound Parametric Speaker for Museum

349

Directional Ultrasonic Speaker with Focused Audio Technology Parametric Array for Museum

400

L18/6620-Nice Performance 18 Inch PRO Sound Loud Speakers Subwoofer Parlante

516

50W Audio Spotlight Untrasonic Directional Sound Speaker System for Museums, Exhibits

299

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