Mini round power bank for emergency chargepower built-in Lithium-ion battery packOver current over charge over discharge over heating and short circuit protectionSupplied with USB cable and micro connectorsSpecification:Battery type:18650 lithium ion batteryCapacity:2000mAh 2200mah,Website:://.cbtgdesign.com, 2600mahInput:DC 5V/ 1AOutput:DC 5V/ 1AMaterial:Metal ABSCharge time:2-3hours  Battery Life >500 timesApplication:IPAD,PSP,MP3/4,GPS,Mobile Phone etcSocket Type:USB chargingColor:Pink,white,black,blue,green,yellow or customizedSize:92*22mmWeight:62g