Does anyone know what this is, and/or how it works?

[edweather]

Got this free with an Amazon battery order. Looks pretty strange. Is it an inverter? A block that charges? What voltage does it produce? What's it for? Any help greatly appreciated. Thanks

Timeusb DC Battery Socket Outlet with Multi Ports, Max. 40A Current with QC3.0 Fasting Charging , Mini Body and Portable, Perfect for Outdoors RV Camping Travel Hunting Fishing Emergency

【Works Perfect with Lithium Battery】With the features of easy installation, place and use at your will, Timeusb DC Battery Socket - Timeusb

www.timeusbpower.com

 

[Ivan275]

Its basically a 12/24v to USB adapter with a cigarette liter port, volt meter and switch.