Specifications: Item size: 33*23mm Input Voltage: DC 12V-24V Max Output: 36W(18W each) Color:Red, Green,Blue Features: 【DUAL PORT DESIGN】 - QC3.0 Quick Charge Port and Type-C PD port design, can charge two different devices simultaneously, allowing you to share the charge time with other people 【Digital Voltmeter】-shows you the real-time accurate voltage. The voltage meter reading led will show up after the item is connected to the battery. 【Packaging Excellence】-We carefully choose excellent packaging materials that are tough, reliable and waterproof, with at least 3 layers of packaging for each product, just to get the product in front of you better and give you the best possible result for a long wait. 【WIDE COMPATIBILITY】 - Compatible with all USB-powered devices, Android phones, iPhone, Samsung Galaxy, Google Pixel, Macbook, tablets, notebook, GPS, digital cameras, video games controllers, and other auto devices