- High frequency accuracy: when operating at high frequencies, the input to output deviation is less than 1 percent, ensuring precise frequency control for tests and experiments. - Audio output tied to frequency: the tone output to connected speakers is driven by the selected frequency; at low frequencies the tone may be inaudible, and when the frequency reaches the audible range, a tone is produced. - For enthusiasts and professionals: reliable frequency modulation for projects or experiments, supporting accurate tone generation and testing. - Enclosed and portable: a protective housing enables durable use and easy transport, allowing flexible integration into existing setups. - Robust and precise construction: built from durable materials, it uses a low-temperature drift crystal oscillator and a high-precision chip to deliver stable performance and improved resistance to interference. - Applications and use cases: - Calibrate and test audio gear (speakers, amplifiers) by generating controlled tones across the audible range. - Prototype and experiment with frequency modulation in electronics projects. - Educational demonstrations of tone generation and frequency response in labs or classrooms.