This is the GP Portable PowerBank 5000 mAh [GP-FP05MS] Safer Over-temperature cut-off during PowerBank recharging Complies with UN38.3 air transport safety standard Faster 2.1A charging speed 2A recharging speed Longer Battery Life Under-temperature protection to prolong battery life Over-charging and discharging protection Overload protection More Durable Short circuit protection Loopback protection -auto cut-off when cable is plugged into input/output simultaneously Easier to Use Intelligent automatic power modulation switch for various input voltage, tailor-made for travelling use Compatible with iOS and Android smartphones, tablet PCs and many other USB devices Smarter Design Innovative plano-concave dual front design to fit different curved-back and flat-back devices Matt aluminium casing Smart LED indication ...Contact us if you need more help.