This is the TOD2.0: a smart wearable device that cools you down or warms you up when you wear it on the back of your neck. You can control the temperature from your phone. It has 4 cooling and heating options from 59 to 108F.
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TOD2.0 also has a manual control mode. It is compatible with iOS and Android devices. It has Bluetooth 5.0 connectivity.
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