I installed it in my caravan and connected it to the battery to charge my phone and tablet. Now I don't need to open the inverter, I just connect my devices directly to the socket and charge them. Very convenient and practical! They didn't have this specific model, so they sent me another one which has battery level indicator lighting and an on/off button so that when you're not using it, you can turn it off to save battery. Very good!

Before I installed the screen, I had this for a bluetooth source Tp-Link. It did a very good job and never lost its connection. Very easy installation if you have basic wiring knowledge and the space under your car's lighter is easily accessible.