Hypergear Magbuds won't turn on

I have had a pair of Bluetooth Hypergear Magbuds for a year or so now with minimal use, ( they didn’t have it as an option to choose but the ones above have a similar design to the Hypergear Magbuds) and they were at 100%, but after I turned them off to save battery, they have had no sign of turning back on. Usually, when charged, it flashes red and then blue when it’s done. When using it flashes blue. But now, it doesn't even flash red when I attempted to charge them and won't turn on no matter which button I press or hold down. Any help, please?

• Also, after reviewing the instruction manual for the Hypergear Magbuds it says if it won’t turn on, charge it. I charged it over a day and they still will not turn on.