The RAVPower RP-PB41 is a black, slim, and rugged power bank with a power capacity of 26800mAh. It comes with a charging cable, travel pouch, power bank, and data sync cable. The power bank has three USB ports and a micro-USB port for connectivity. It is compatible with universal USB devices and has a voltage of 5V. The power bank is lightweight and portable, making it an ideal external battery for phones. The manufacturer offers a 1-month warranty.