Dog Whistle|娛樂線上App不用買

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【免費娛樂App】Dog Whistle-APP點子

It use different sonic sounds of high frequency. Dogs can hear sound at higher frequencies than humans can. A dog whistle exploits this by emitting a high frequency sound to call to a dog. Many dog whistles emit sound in the upper audible range of humans, but some, such as the silent whistle, emit ultrasound at a frequency in the range 18–22 kHz.

【免費娛樂App】Dog Whistle-APP點子

免費玩Dog Whistle APP玩免費

免費玩Dog Whistle App

Dog Whistle APP LOGO

Dog Whistle LOGO-APP點子

Dog Whistle APP QRCode

Dog Whistle QRCode-APP點子
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未知Android
Google Play
1.1
App下載
免費
1970-01-012015-04-21
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