Don't risk having a dead phone—carry a Universal Cell Phone Battery Back-Up just in case! Charge the Back-Up ahead of time (plug it in at home), then carry it in your purse, briefcase or pocket for extra power when you're away from other power sources. With your phone plugged in, you'll get immediate talk time, and your device will be fully charged in about 3-4 hours. Has a USB port and five different tips—so it can charge almost any cell phone or mobile device (including MP3 players and digital cameras)! Once charged, it can fully power your device twice before needing to be plugged in again. Plus, it holds 90% of its charge for up to 30 days and can sit unused for up to three months without needing to be recharged. Included tips: iPhone, Droid, Blackberry (new), Blackberry (old) and PSP video games. Sturdy aluminum. Includes carry pouch, wall charger and USB cable for computer charging. 1" diam. x 3 3/4" l.