Specification:
Type: USB micro to DC
Adapter Connectors 1: DC 5.5 x 2.1 mm female jack.
Connectors 2: USB micro male jack.
The output voltage: 5V
Package includes: 5PCS x USB micro Male to DC 5.5 x 2.1 mm DC Female Connector Adapter Contact part is made of copper material, good conductivity and durable, easy
to use (Note: The output voltage is 5V, Cannot use 9-12V voltage. ) Use a 5V power adapter with a barrel connector to power and charge USB devices. This is a great way to create a higher current USB charger using the extra 5V barrel chargers that you have lying around. Additional Features Use a 5V power adapter with a barrel connector to power and charge USB devices.
Attention Please: Your charger voltage and current should talk to your phone or tablet, do not use a 12V charger round go wrong insertion of mobile phones and other 5V electronic equipment, that will burn electronic devices such as mobile phones.