1. USB mobile power booster cable 9V/12V, suitable for USB lights, USB fans, radiators, 5V mini speakers, etc.
2. Universal for all mobile power supplies, positive and negative output inside the DC plug
3. Plug: outer diameter 5.5mm, inner diameter 2.1mm, inner positive and outer negative
4. Function: power other devices through charging treasure
5. Cable length: 1 meter
6. 9V booster line: with booster components, the USB input 5V voltage passes through the components, boosted to 9V voltage 1A
7. 12V direct: with boost components, the USB input 5V voltage passes through the components, boosted to 12V voltage 1A
8. Weight: about 28g