... easy to use, high capacityUse USB cable to charge power crystalQuality: 12 months warranty; CE, RoHS, FCC ... circuit, safe.In line with hardware testing standardsColorful shell, beautiful and stylishIntelligent protection circuit, safe and reliableIntelligent ... life, energy saving and environmental protectionPrecise LED light power indication, slow flashing shows discharging statusSafety:Lithium-ion ...