Видео ютуба по тегу 20H - 20Khz

20Hz to 20kHz (Human Audio Spectrum)
20Hz to 20kHz (Human Audio Spectrum)
Ультразвуковой репеллент для мышей и крыс, 20-70 кГц, 10 часов
Ультразвуковой репеллент для мышей и крыс, 20-70 кГц, 10 часов
20000 Hz Test Tone 10 Hours
20000 Hz Test Tone 10 Hours
20 Hz Test Tone 10 Hours
20 Hz Test Tone 10 Hours
20000Hz Ultrasonic Mouse and Rat Repellent (11 1/2 Hours)
20000Hz Ultrasonic Mouse and Rat Repellent (11 1/2 Hours)
Tinnitus Topper Noise Masking up to 20 kHz
Tinnitus Topper Noise Masking up to 20 kHz
Bass Test - 20Khz to 20Hz
Bass Test - 20Khz to 20Hz
Human Audio Spectrum 20H - 20KHZ / How high can you hear?
Human Audio Spectrum 20H - 20KHZ / How high can you hear?
Sine Wave Sweep 20Hz-20KHz (Human Audio Spectrum)
Sine Wave Sweep 20Hz-20KHz (Human Audio Spectrum)
20KHz Ultrasonic Rat Repellent 10 Hours
20KHz Ultrasonic Rat Repellent 10 Hours