... Mobile phone,PSP,GPS,MP4/MP3 at anywhere in anytime Power bank SG-3500N Input:5v1000mA Output: 3. ... port (can connect on computer for charging this portable power) Wide compatible, Applications: Mobile phone, and MP3/ ... different device: Press the button to show the power percentage: 25%,50%,75%,100% Output USB ... the AC wall USB charger2. by connect to computer USB port for input charging the power bank ...