Saturday, March 24, 2018

Emission Sound Pressure: at 10V：≥117dB.... human hearing is damage with > 80db ...
2Pcs Ultrasonic Module Receiver Transmitter RT Probe R and T Separate | eBay
2Pcs Ultrasonic Module Receiver Transmitter. Diameter: 16MM, Pin pitch: 10MM. Receiver Sensitivity: at40KHz (0dB=V/ubar)：≥-65dB. We will reply you ASAP. (Pin…
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China US AI URGENT meeting adversial attack ( Alibaba site commercial attack )

 https://www.abc.net.au/news/2026-05-12/trump-xi-beijing-summit-must-confront-ai-cold-war/106666482 https://www.thewirechina.com/2026/03/29/...