AWETEK 4800mah Aluminum Alloy, Ultra-thin High Capacity Portable Battery Charge for Samsung Galaxy Android Phone Smartphone Tablets Pc Bluetooth Speaker-red Premium Grade A battery cells and microchips to ensure highest possible quality and 500+ recharge cycles over a lifetime. Stylish, compact, lightweight design makes it ideal for recharging on the go . Perfect for long road trips, flights and daily use Built-in flashlight for dark or low-light environments Comprehensive security protection, effectively prevent overcharge, discharge, over voltage and over current.