Review on 🔌 Timloon Car Charger Adapter: 60W Socket Splitter with Dual USB Quick Charge 3.0 and 2.4A USB, Voltage Display – Ideal for iPhone, iPad, Android, Samsung, Dash Cam, GPS by Jeremy Rodriguez

This was just right for connecting a phone and had a passage for another plug. The display is very useful to check the car battery charge level before you start the car, especially in winter. The display will quickly alternate between the car's voltage and the amps being drawn by the phone, allowing you to verify that the phone is actually charging and make sure the car's alternator is working properly. The blue display is clearly visible in daylight and also unobtrusive at night. The brightness of the display of the previous model was not enough for me - this one is just right.