Ultrasonic Speaker
- 20khz 41mm Piezo Tweeter Speaker Waterproof Ultrasonic Speaker
- 161mm 2.8khz 110dB Piezo Ultrasonic Speaker for bird repellent
- 38mm 25khz 2.5~60kHz High Frequency Round Piezo Ultrasonic Speaker
- 2.4khz to 27khz 84mm 92dB 12v Piezo Tweeter Speaker for bird repeller
- 51mm High Frequency Round Piezo Tweeter
- Repellent Device Ultrasonic 20khz Annunciator Speaker