It does not rely on a strap to achieve buoyancy; instead, the hosting of the device itself is capable of floating.
Leading OEM and ODM of binoculars, spotting scope, night vision optics in China
It does not rely on a strap to achieve buoyancy; instead, the hosting of the device itself is capable of floating.
Leading OEM and ODM of binoculars, spotting scope, night vision optics in China