With the adapter and for Milwaukeee M12 Li-ion battery,you can charge your mobile phone and other USB deviceYou can supply power to other electrical equipment through the DC output port.You can use the mobile phone charger to charge the 12V M12 lithium battery of the for e through the -usb port.Built-in boost circuit: detect temperature, detect overcurrent The over-voltage high-performance protection board ensures the stability of the charging current and protects any safety hazards in the charging process of the mobile phone.DC port output: 12V 2.0AUSB port output: 5V 2.1A-USB input port: 5V - 21V inputColour:redMaterial:ABS plastictype: APackage Contents:1 x N12 Li-ion Battery Charger Converter(Different batches, the sticker label on the product may be different from the picture, it will not affect.)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.