... .FCC,CE,RoHS 3.can charge laptop,mobile phone 4.LCD for the voltage change 20000 mah power bank, You best chioce ... 7.Can work with LAPTOP, mobile phone ,headlamps, flashlights, laterns, intercoms, GPS, digital cameras, mp3, mp4, etc 8.LCD display for the voltage ... change9.Al-alloy cabinet, easy to heatsink, keep the product have long life.Packaging for 20000 mah ...