When we are taking a hiking outside, when we are camping in a remote area, and when we are working on the fields, we more or less have a sense of worry that to find an available source to keep our electronic devices in a full power. Now this product- a multi-function solar emergency charger has emerged as a portable power solution, light and convenient for carrying, safe and easy for operating, you can recharge your mobile phone, Digital camera, PDA, MP3, MP4 whenever and wherever. Your best choice, your best traveling friend