Usb charger has wall charger, car charger and wireless charger. Wall charger is also called travel charger,it has EU, US , UK and AU different plug for different voltage in different countries, Also with different usb ports for use, like single usb port , dual usb ports,3 usb ports and 4 usb ports. different output , like 5V 1A/2A/3A/4.8A. In order to meet different demand, there are QC2.0 ,QC3.0 and PD charger ,You could choose what you need .We use the best fireproof PC+ABS material , Over voltage / Over Current /Over Short circuit /Over-load/Over Charger/ Over-temperature protection, it is certificated with Ce, ROHS and FCC .
Wireless charger become the new trend with iphone 8/X and Samsung mobile phone, The charger uses an induction coil to create an alternating electromagnetic field, which the receiver coil in the phone converts back into electricity to be fed into the battery. Wireless charging pad and holder is more popular for 2-3 devices charging, now that most devices either support multiple standards or at least Qi, wireless charging is likely to become a standard part of smartphones in the near future.