How to sync music on my iPhone without a USB/charger?

I have an iPhone 4 and I want to add music from my iTunes library onto it but my charger/USB broke a week ago and I was wondering if there's a way I can connect my phone to iTunes without it?

ITunes Store it's a purple app… Buy music from there or re download your old songs by going in to your purchased with the account you purchased with… If you want free music there's other apps that you can download music from that are free but quality over quantity

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