No contact from company for 5 weeks after order, including 6 ignored emails from me. First shipment received 7 weeks after order, and the wrong color cables were sent. Still no response from company regarding this issue. Cables will not work with certain blocks, and do not allow data transfer. This makes them quite impractical to what I purchased them for, use in an ambulance. Second shipment received 2 weeks later. Power bank charges quickly, but doesn’t maintain a lot of power. I like that it is smaller than other power banks, but it also tends to disconnect and fall easily causing concern it may get lost if I move around too much.