No battery needed! No charger needed! Freezing starts ANYWHERE below 18°C (64°F). Simply place this neck cooling tube into iced water. No ice around you? No worries! It freezes using any AC! Car AC, Office AC, Home AC, ice box, refrigerator, freezer.
Automatically cooled to a temperature below 18℃.
Freezes in air conditioner or cold water from the water purifier.
Enjoy cool time for 40 minutes up to 1 hour. Cold holding time varies depending on the external environment. No risks of skin necrosis or frostbite through cooling by maintaining an optimal cooling temperature.
You can use it anywhere, anytime, anywhere, hiking, summer vacation, construction sites.
