This is a 30W universal power supply with multi tips and 5V 2.1A USB Port for all your pedals, webcams, router, set-top box, smart phone, wireless receivers, portable speaker, kids 4 wheeler, nail machine, pet groom clipper, DVR and more. Features: * USB Port 5V 2.1A: Can charge any 5V devices, such as mobile phone, portable charger ect. * This universal charger AC DC adapter has 7 selectable outputs. * With 6 different plugs, the various size fit most of small electronic devices, it replaces a full box of batteries. * With protection of over voltages, over current, short circuits and over temperature, more safety! [IMPORTANT] The polarity of switching power adapter is irreversible. DC Plug Polarity: inner Positive(+), outer Negative(-). The Polarity is NOT compatible with devices that require inner (-) and outer (+)(totally opposite), such as some baby monitor, music video. Please check carefully before purchase. You can check the Polarity information of your device printed beside the power port Specification: Charger Input: AC 100V~240V 0.25A 50/60Hz Charger Outputs: 3/4.5/5/6/7.5/9/12V; USB Port: 5V 2.1A 6 plugs Spec.: 5.5x2.5mm, 5.5x2.1mm, 4.0x1.7mm, 3.5x1.35mm , 3.0*1.1mm, 2.5*0.7mm Instructions: 1. Connect the correct plug make sure it's firmly attached to the DC input port of your device. 2. Set the right DC output voltage. There are 7 options. (use the little key to choose the right voltage. If the required voltage is not in the options, please choose the closest one. eg, if your device needs 5.5V, you can choose 5V or 6V) 3. Connect the adapter to the electrical socket. 4. Ready to power up your device! Caution: NOT compatible with laptop or other high power equipment over 30 watt;
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