ULTRA-COMPACT REAL CAPACITY: 10000MAH using high-quality polymer batteries,small size and larger capacity which keeps the device ports easily accessible when in the inside pockets of your sports coat. SAFETY PROTECTION: Use equipment with short circuit, overcharge and over discharge protection,when it in constant current charging is more safer. MORE EASILY to CARRY: Compact portable design,Rated power 37Wh, in line with the provisions of the Civil Aviation Authority, the logo lasting clear, you can bring the aircraft easy to travel. HIGH TECHNOLOGY: Using fast charging IC technology program, the USB output port can automatically identify the terminal equipment for charging, which self-charging efficiency of ultra-90% enhanced charging speed. WARRANTY and WHAT YOU GETt: 1*Yosib External Battery Charger, 1*Micro USB charging Cable, 1*User Manual And 1*Exquisite package;12 months after-sales warranty and friendly customer service, please rest assured to buy.