Why my Aiworth Just keeps Un charging?

First of all I just plug it in to the recorder, and did not charge. So I have to press the power button and tells me Bye.
Safety First. Be Very Gentle and It breaks very easily so. We need to get more charger cords or we can replace the Aiworth Charger cord for free.
There are so many recorders that I like is The Olympus WS 882 Digital Voice Recorder. USB Chargers is the only I'm can find it.
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