Features 1.12V 3 hole cigarette socket panel , with 12V USB outlet + LED digital display voltmeter+ 12V cigarette lighter outlet. 2.Cigarette lighter adapter splitter, can be used simultaneously for a variety of portable appliances in your vehicle. 3.LED digital voltmeter, display 5‑48V voltage, you can monitor the battery condition of your vehicle in time. 4.Dual USB charging ports: 5V/2.1A&2.1A (total 4.2A), detect and simultaneously charging 2 devices at optimal speed. 5.With the protection of overcharge, over‑heated, over‑current. And the USB charger socket can identify the most appropriate current for your device. Specification Condition: 100% Brand New Item Type: 3 Hole Switch Panel Material: PC Color: Black Output Voltage: 5V 2.1A Type: Toggle Rocker Switch Panel Compatible Brand: Universal Connectivity: USB Working temperature: -40-80°C Package List 1 x Voltmeter with Switch 1 x Socket 1 x Dual USB Socket 1 x 3-Hole Panel 4 x Screws 6 x Blue Terminals