I have a few cars for my business and we used to have triplogik in all cars. Believe it or not, after 1 year or 1.5 years, all were not working. Not one but all 5. I loved that product but there is no way we are able to connect with the company. I saw reviews that they said the customer service is great. Please contact them and try to talk with them before you buy. A great idea of product with an expiration date.