Satisfied Defender - Buy with confidence, MICTUNING provides 30 days Money Back/Replacement Guarantee, Hassle-free 24-Month Warranty, Lifetime Customer Support, Timely RESPONSE within 4 hours. Safety is everything - Built-in safety fuse, with overheat protection. When overcharged, charging will be stopped, it will recover after cooling. It is safe to use, well protect your expensive device. Universal for all USB port charging devices, mobile phones, tablet, iPad, iPod, GPS, digital cameras, etc. Convenient Dual USB Ports - 3.2A single port output (max total output of 6.4A), can charge two different devices simultaneously at optimal current. The USB port can be inserted through both sides of the front and back. Even if it is used in the night, it can be inserted successfully at one time, which is very convenient. High-Speed Charging, Dual - Color Light Charging Reminder - Dual USB Quick Charger charges your device from 0% to 80% in just 35 minutes, QC 3.0 Backward-compatible with QC 2.0, 1.0, provides standard charging for non-quick charge devices. The car charger with two colors of LED lights. The body outer frame emits ice-blue light when power-on, emits red light during charging. When finished, it lights up in ice blue and inform charging completion. Upgraded Version with LED Digital Voltmeter - The QC3.0 USB Fast Charger updated with Blue LED Digital Voltmeter, which accurately shows real-time voltage of car battery, monitor range 0-99.9V. It better helps to remind you of the status of your battery. We suggest you ask professional to install. Please measure the size of the car charger that you need and read the listing carefully before purchase.