Fast Charging Dual Inputs Dual Output Slim & Compact PowerSafe Management Energizer UE5057 is the perfect ultra-slim power bank for smartphones, tablets, and more. Fast charge at 2.1A, UE5057 provides 5000mAh capacity that can a standard smartphone up to one time and more. UE5057 is designed with strong housing against backdrops and damages, the ultra-slim and lightweight design fits perfectly in your bag wherever you go! Energizer PowerSafe Management guarantees against short circuit, overcurrent, overcharge and overdischarge for your power bank and devices. Design LED indicators Yes Built-in compass No Built-in mirror No Built-in flashlight No Shape Rectangle On/off switch Yes Built-in display No Charger compatibility Mobile phone/Smartphone, Tablet Product colour Black Number of simultaneously connected devices (max) 2 Performance Fast charging Yes Wireless charging No Battery capacity 18.5 Wh Battery technology Lithium Polymer (LiPo) Charging source USB Ports & interfaces Micro-USB