This Sound Logic portable 5600 mAh recharges your phone when you have run out of power. Connects to your iPod, iPhone, iPad, Android, and other smart phones and devices to recharge the battery. The power cell recharges via a USB connection to your computer or other USB power source. The 5600 mAh back-up fits into your pocket, purse or briefcase to go anywhere that you travel. USB cable included.