I really like(d) the GhoStick. I bought 4 of them last year but they tend to get lost. So I have bought 3 more this year in 2019 and have had to send all of them back. I've gotten one replacement back so far and even that one seemed like it has a weak battery. My local trusted store has stopped stocking them so I've been buying on-line. Am I getting counterfeit devices?