... , actually 4,000mAh) Battery type: Li-polymer battery Input voltage: 5V DC Features: Works with most MP3 players, PDAs, cell phones ... ,000mAh, actually 4,000mAh)Battery type: Li-polymer batteryInput voltage: 5V DC, 1.0AOutput voltage port 1: 5.0V DC, 1 ... : mainly whitePacking: 1 x power bank1 x USB to DC port power cable8 x adapters 5,000mAh USB Output Power Bank/Portable External Battery Pack ...