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Keep Yourself Warm for Just $20 With These Rechargeable Hand Warmers
Now I've ditched the powdered packets in favor of rechargeable warmers -- specifically, a pair of Oocoopa UT3 Lite Magnetic ...
Hackaday3y
Teardown: Go Warmer USB Rechargeable Hand Heater
But not so with the Go Warmer. This lozenge shaped device is not only a USB power bank that can keep your mobile devices topped up, but is also doubles as a miniature heater that the manufacturer ...