I ordered a replacement battery for a Shark vacuum from this company and was notified 3 days later that the order HAD shipped, complete with a tracking number. I kept checking it, but the post office tracking information would only say the post office had been notified that a package was ready for them to pick up. 2 weeks later, I sent emtcompany.com an email that was never responded to. I had to go through PayPal to get a refund and have not received so much as an apology from emtcompany.com. Stay away from this company.