How to do I charge my lg tone plus wireless headset?

I love this headset but I can't figure out how to charge it lol. My mom threw away the box with the instructions so I'm Phucked unless one of you guys can help me. I have the charger but I don't know how to use it. The charger looks like a phone charger so I don't know where to connect it to. I think it goes connected to your phone but I have an iPhone 5 so the charger thing doesn't fit. Please help I'm really confused. How do I charge these damn earphones

A charger came in the box. Use that charger connected to a working wall AC outlet anf the headset's charging port. You might be able to use a USB cable connected to the headset and a computer's USB port. Using the phone to charge the headset will not work. Ever.

The micro USB port for charging is under the little plastic cover marked with the USB symbol.