With this power bank, you can always have a battery relief to your fingertips where and when you need it. The compact size allows users to carry it with them on the go. This power bank is engineered to promise stable and reliable performance.

• Weight: 108g.
• Battery type: polymer Li-ion battery.
• Battery capacity: 3.7V 4,000mAh.
• Output rating: DC5V/1A.
• Input rating: DC5V/1A.
• Input connector: micro USB.
• Output connector: USB.
• Efficiency: above 85%.
• Battery life: recycling time 500 times.
• Charging time: 4 hours.
• Compatibility: compatible with pads, phones, video game players, MP3 players, digital cameras, and so on.