... Rechargeble polymer lithium-ion battery2. Fashional designs and various colors for choice3. 5 different connectors fit most popular portable devices ... phone,PDA, PSP, digital camera, MP3/MP4.4. With overcharge, overdischarge protection function5.With1 On/Off switch and 4 ... indicators, identify power capacity level and charging status.6. With CE, FCC, ROHS certifications new power bank for mobile phone