Twin Pack Always have an extra portable charger for your devices. The vPow compact battery pack is perfect for people who need a pocket size charger always at hand. Double USB ports to recharge all devices. Power for everythingThe vPow powerbank works with all devices which support charging from USB. Compatible with iPhone, Samsung Galaxy, Android Phones, Heated Vest, Heated Socks, Heated Stadium Seat, Gilet, Body Warmer, portable speakers, tablet PC etc.