An ultrasonic levitator is a device that uses high-frequency sound waves to lift and suspend small objects in mid-air without any physical contact. This phenomenon is known as acoustic levitation. Ultrasonic levitation leverages the principles of sound wave interference and pressure nodes to create a stable environment where objects can float.

### How Ultrasonic Levitators Work

1. **Sound Waves**: Ultrasonic levitators use sound waves in the ultrasonic range, typically above 20 kHz, which is beyond the range of human hearing.
2. **Transducers**: These devices generate ultrasonic waves.