Bangcool Travel Bottle Heater

Description: Power Supply: USB cable 3 Gears: Red: Lower than 40°C(104°F), not enough water temperature; Green: 40-45°C(104-113°F), suitable for warming milk; Blue: More than 45°C(113°F), not suitable for warming milk Frequency: 50Hz Function: Heating/thermal insulation Heating ...Description: Power Supply: USB cable 3 Gears: Red: Lower than 40°C(104°F), not enough water temperature; Green: 40-45°C(104-113°F), suitable for warming milk; Blue: More than 45°C(113°F), not suitable for warming milk Frequency: 50Hz Function: Heating/thermal insulation Heating Time: When heating temperature is 40°C(104°F): Environment temperature: 10°C(50°F), heating time: 110 minutes; Environment temperature: 20°C(68°F), heating time: 50 minutes; Environment temperature: 25°C(77°F), heating time: 30 minutes Light