Power Cord for Echo Dot 4th Gen, 3rd Generation, Alexa Spot – USB 5V to DC 12V Cable Charger Adapter 3 Ft

It is a voltage converter. it steps up the voltage from 5V to 12V.
Package Included:
1 x converter cables
Charger cable compatible with Alexa dot 3rd gen or 4th gen, dot with clock, show 5 1st gen or 2nd gen, spot, b7w64e
Step up voltage converter from 5v to 12v
Connect the USB 2.0 connector to a 5V 2A output port, or use a 5V/2A power adapter/power bank.
The round DC barrel connector produces an output of 12V
The smart IC chipset integrated within provides protection against over-current, over-voltage, overload, and short-circuit
Package contains 1 x 3 feet black adapter cable