coachtoswimmer learn to swimming wireless talking system/6M underwater
On ECPlaza since 2012
Location: Guangdong, China
Business Type: Manufacturer, Exporter, Wholesaler/Retailer
amazing We know how difficult it can be to communicate with swimmers during training. High volume and poor acoustics in swimming pools force coaches to scream to be heard by the swimmers, and while swimming they don't hear you at all. Coaches haste...
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Listed on Sep 19, 2019