What is the charger cable type

I bought the headset on sale only to find it did not have the charging cable included. I was hoping it might be a universal type charger verses a specific one only for this unit so that I could purchase the cable at a reasonable price if I do not already have one. I tried the charger for a seemingly standard mini usb port but it didn't seem to fit. Can you tell me if it is a USB micro charger and if so the specs so I can find one or learn that I have one that will work with/for it. If not, do you sell a charging cable for it and how do I find one to buy? Thank you!