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

340

0.1W Micro Headphone Raw Speaker

482

Museum and Exhibition Focused Beams Spotlight Sound Directional Speaker System

430

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

463

Commercial Ultrasonic Directional Beam Sound Parametric Speaker for Museum

352

Directional Ultrasonic Speaker with Focused Audio Technology Parametric Array for Museum

403

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

519

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

302

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