I have owned a C2 taser since 2008 and a month ago I tested it without the wired which I do periodically it stopped working. I emailed with customer service and called them when I couldn't find my serial number for the form to send in the device. The customer service was so helpful and located my serial number and they assured me I could send it in even though it is not under warranty no problem.  A week or so after sending my taser in FedEx knocked on my door and delivered a brand new replacement taser. I am beyond happy with this company and the way they back up their products. Thank you so much Taser international...  I love my C2 and I am so happy to feel safe again with this new one!!! :)