A high-frequency speaker is a device that produces sound waves at high frequencies, typically above 2,000 Hz. This type of speaker is commonly used in audio systems that require clear and bright sound reproduction, such as home theaters, studios, and live events. Some synonyms for high-frequency speaker include tweeter, treble speaker, and high-range speaker. A tweeter is a small, specialized speaker that is designed to handle high-frequency sounds, whereas a treble speaker and high-range speaker are larger speakers that can produce a wider range of frequencies, including high frequencies. Overall, these synonyms can be used interchangeably to describe speakers that produce high-pitched sounds with clarity and accuracy.