dodocool Portable 5200mAh Mini Power Bank External Backup Battery Backup Charger with LED flashlight For iPhone 6 /6 Plus 5S 5C 5 4S 4,Samsung Galaxy Note 3 S4 S3,HTC One,Nokia,Galaxy Tab, PS Vita, Gopro,tablets and more smartphones Black (5200mAh) Large capacity of 5200mAh, compatible with popular smartphones and tablets, such as Samsung, iPhone, HTC, etc. Full protection against over-charge / over-discharge / over-current / over-voltage / short-circuit, etc. Four Blue LED Lights indicate the charging state and power level (four lights on for full power and one for low). By long pressing the power button, the flashlight is turned on (Long-press again, off). Equipped with one USB cable, supporting data transmission. Long lifespan: circle time is more than 500.