ឧបករណ៍ផ្គត់ផ្គង់ខ្យល់អ៊ុកក្រោមទឹកគ្មានដែនកំណត់

22-Jan-2020 10:44 am (583 Views)

The Exolung is aiming for the sweet spot between scuba and snorkeling by using the power of kicking legs to pull a steady supply of air down from the surface.

 

 

Source: Youtube

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