What if your keychain could tell you the temperature, all while staying battery-free? That’s the essence of this innovative keychain ‘NFC_temp’ by [bjorn]. This nifty gadget harnesses energy from an ...
Atlanta, GA, April 29, 2026 (GLOBE NEWSWIRE)-- DMG Press, a pioneering force in the digital music landscape, has announced the launch of its latest innovation: a physical Mini CD keychain embedded ...
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