Great for your promotional gifts
●Untra slim and sleek which make it easy to carry anywhere you go
●Dual USB port charge more device
●Superior aluminum with sturdy build can easily survice the everyday wear and tear
●Maximum 2.1A output satisfy all your device
●Fantastic finish appropriate for your personal use and the best present
●Structure: Intergrated Aluminum body+Plastic sticker bottom&cap+4 LED light+printing or laser logo
●Battery type: Lithium-polymer battery - 500 charge cycles - quality A
● Input: Micro USB DC 5V 1.0A / Output: USB DC 5V 2.1A
● Recharging time: 2-3 hours
● Capacity: 4000 mAh.
● Protection: Over-charge Protection；Over-discharge protection；Over-current protection；Short-cut protection
● Warranty: 1 year warranty
●Dim.: 110.5mm×67.0mm×9.5mm, p.150 gr.