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The custo charger multi (10107) has only a connector for charging, it has a micro USB connector and the label on the back of the devices shows the type name: custo charger multi.
The custo charger single can, optical, only identified by the serial number plate at the back of the device. The device can be connect to a PC or charger with a micro USB cable.
The custo guard base 6 (10124) has charging and data contacts on the side where the guard holter is placed. It has a Mini USB input and a USB-C connector.
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The custo guard base 1 (10123) can fiscally only be recognized on the serial number plate on the back of the device. The device can be connect to a PC with a micro USB cable.
