Weelpower 30W 6A 4 Port USB Wall Travel Charger Desktop Charging Station with iSmart Charging Technology(White) Smart Charing: iSmart Technology with TI chip inside intelligently detects the input current of the connected devices to maximize charging speed up to 2.1A or 1.0A each port. Ultra Powerful: Total 6A with 4 x 2.4A output ports for fast charging; total 4 ports allow 4 devices to all charge simultaneously. Safe: FCC and RoHs certified.We have past EMC test,this means you can paly the device when it is charging,and do not cause any influence.Made by Flame-retardant materials.The surge and short circuit prevention protection keep your device and yourself safe. Multiport wall charger,which can charge for several cell phones and tablets at the same time.You can charge at home,office,travel or other occasions,multi-color for choice. Reliable and Friendly Customer Service: Ready to respond within a 24 hour time frame. 30-Day Money Back Guarantee, 18 Month Replacement Warranty and Lifetime Support Guarantee