sine wave - 128.43hz [c3] [a4 = 432hz] Published 8 months ago • 94 plays • Length 1:08 Download video MP4 Download video MP3 Similar videos 2:40 review 10 in 1 type-c tester 0-5a current dc 4-30v voltage usb charger tester power meter mobile ba 0:16 hrs motor sensor plate || sensor plate 1:37 phích nối điện 3 chân tròn 10a 250v chuẩn j brazil thụy sỹ liechtenstein