Opisy

• Outdoor Survival Flat Whistle Camping Hiking Rescue Emergency Whistle Football Basketball Match Whistle packing in opp bag Scope of application: basketball, football, volleyball, diversified sports, mines, ports, construction, transportation and other fields The design of howie whistle channel makes it blow moderately, whistle loud and clear, can permanently drown the noise of the group and the natural surroundings Products as a way to preserve order, site visitors command, management the situation, rescue and catastrophe relief, survival and help, entertainment, sports and mining, ports, construction and different fields could be use

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