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by sometimeshuman
1245 days ago
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The founder of this company claims that the air speed is 120km/h in a PC-World video interview. It is surprising with such high airspeed that this device is "quiet". Is it possible that most of the sound energy is ultrasonic which is why they state their noise level as 21dBA and not 21dB ? From my understanding dbA is weighted according to human hearing. Your dog might hate this invention. |
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No, the claim is 200 kph. He also said it's about 120 miles per hour.