Piezo Tweeter For Dj Speaker In Anand. A Piezo Tweeter is a high-frequency loudspeaker that uses a piezoelectric crystal to produce crisp, clear treble sounds. These tweeters are commonly used in PA speakers, DJ systems, home audio, alarm systems, and commercial sound equipment due to their high efficiency, durability, and low power consumption. Applications :- PA speaker systems DJ and stage speakers Public address systems Alarm and siren systems Home audio speaker cabinets Industrial announcement systems