3.5 x 1.35mm Male to Female Right Angle 90-Degree Power Adapter Connector Converter for Blu-ray, Printers, Router, Switch, LED Strip, Camera, Solar Panel,Amazon Alexa Echo Look Fire TV Link,-1 PCS pacakge:1 pcs the meter reports the voltage

the meter reports the voltage & current that the charger supports

Scroll the key to the left or right to adjust the voltage

please see: TODO TODO

only one of the left and right keys can power on the meter

3.5 x 1.35mm Male to Female Right Angle 90-Degree Power Adapter Connector Converter for Blu-ray, Printers, Router, Switch, LED Strip, Camera, Solar Panel,Amazon Alexa Echo Look Fire TV Link,-1 PCS pacakge:1 pcs the meter reports the voltageFEATURES: Converts round shape straight power connector to 90 degree right angle connector. Save space around the power plug. Ideal for tight spaces as it allows connection at 90 without twisting the cable. 3. 5mm x 1. 35mm Male Plug to 3. 5mm x 1. 35mm Female Jack Coupler Converter Right Angle for, Blu ray, Printers, Router, Switch, LED Strip, Camera, CCTV , Amazon 21W Power supply adapter, Alexa Echo 1st Generation, Echo 2nd Generation, Echo Show