Thermal lunch bags only slow the inevitable: your food arrives at room temperature and slightly sad. LunchOn goes the other way and actively changes the temperature. A Peltier system built into the three-tier box either heats or chills the compartments on command from an app, so leftovers arrive hot and salad arrives cold, from the same box. The 25,000mAh battery pack detaches and doubles as a normal power bank with 100W USB-C, and it charges between trips on USB-C. It is the rare lunchbox that is genuinely kitchen hardware rather than insulated fabric.

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